diff --git a/docs/changelog.rst b/docs/changelog.rst
index 1b4979962c..0eed24a9f8 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -4,12 +4,16 @@ CHANGELOG
 
 2.102.1+dev (XXXX-XX-XX)
 ------------------------
-- Add popup button to add organizer in touristic event form
 
 **New features**
 
 - Add `include_externals` filter to Cirkwi trek exports, to allow excluding treks with an external id (eid) (#3947)
 
+**Improvments**
+
+- Add popup button to add organizer in touristic event form
+- Change the `organizer` field of `TouristicEvent` model to a many to many field named `organizers` (#3587)
+
 
 2.102.1 (2024-02-20)
 --------------------
diff --git a/docs/install/advanced-configuration.rst b/docs/install/advanced-configuration.rst
index 27fef76484..687f4ade97 100644
--- a/docs/install/advanced-configuration.rst
+++ b/docs/install/advanced-configuration.rst
@@ -1389,7 +1389,7 @@ A (nearly?) exhaustive list of attributes available for display and export as co
         "email",
         "website",
         "end_date",
-        "organizer",
+        "organizers",
         "speaker",
         "type",
         "accessibility",
@@ -1929,7 +1929,7 @@ A (nearly?) exhaustive list of attributes available for display and export as co
         "contact",
         "email",
         "website",
-        "organizer",
+        "organizers",
         "speaker",
         "accessibility",
         "capacity",
@@ -2277,7 +2277,7 @@ An exhaustive list of form fields hideable in each module.
             'contact',
             'email',
             'website',
-            'organizer',
+            'organizers',
             'speaker',
             'type',
             'accessibility',
diff --git a/geotrek/api/mobile/serializers/tourism.py b/geotrek/api/mobile/serializers/tourism.py
index ba4b6ee26f..7c7287d298 100644
--- a/geotrek/api/mobile/serializers/tourism.py
+++ b/geotrek/api/mobile/serializers/tourism.py
@@ -37,6 +37,8 @@ class Meta:
     class TouristicEventListSerializer(geo_serializers.GeoFeatureModelSerializer):
         geometry = geo_serializers.GeometryField(read_only=True, precision=7, source='geom2d_transformed')
         pictures = rest_serializers.SerializerMethodField()
+        organizers = rest_serializers.SerializerMethodField()
+        organizer = rest_serializers.SerializerMethodField()
 
         def get_pictures(self, obj):
             if not obj.resized_pictures:
@@ -50,6 +52,13 @@ def get_pictures(self, obj):
                 'url': os.path.join('/', str(self.context['root_pk']), settings.MEDIA_URL[1:], thdetail_first.name),
             }]
 
+        def get_organizers(self, obj):
+            return ", ".join(
+                map(lambda org: org.label, obj.organizers.all())
+            )
+        # for retrocompatibility of API
+        get_organizer = get_organizers
+
         class Meta:
             model = tourism_models.TouristicEvent
             id_field = 'pk'
@@ -57,7 +66,7 @@ class Meta:
             fields = ('id', 'pk', 'name', 'description_teaser', 'description', 'themes', 'pictures',
                       'begin_date', 'end_date', 'duration', 'meeting_point',
                       'start_time', 'contact', 'email', 'website',
-                      'organizer', 'speaker', 'type', 'accessibility',
+                      'organizers', 'organizer', 'speaker', 'type', 'accessibility',
                       'capacity', 'booking', 'target_audience',
                       'practical_info', 'approved', 'geometry')
 
diff --git a/geotrek/api/tests/test_mobile/test_api_mobile.py b/geotrek/api/tests/test_mobile/test_api_mobile.py
index aca8ea35b1..86cbb046b7 100644
--- a/geotrek/api/tests/test_mobile/test_api_mobile.py
+++ b/geotrek/api/tests/test_mobile/test_api_mobile.py
@@ -49,7 +49,7 @@
 
 TOURISTIC_EVENT_LIST_PROPERTIES_GEOJSON_STRUCTURE = sorted([
     'id', 'name', 'description_teaser', 'description', 'themes', 'pictures', 'begin_date', 'end_date', 'duration',
-    'start_time', 'contact', 'email', 'website', 'organizer', 'speaker', 'type', 'accessibility', 'meeting_point',
+    'start_time', 'contact', 'email', 'website', 'organizer', 'organizers', 'speaker', 'type', 'accessibility', 'meeting_point',
     'capacity', 'booking', 'target_audience', 'practical_info', 'approved',
 ])
 
diff --git a/geotrek/api/tests/test_v2.py b/geotrek/api/tests/test_v2.py
index bad2747d2b..0845aaa68a 100644
--- a/geotrek/api/tests/test_v2.py
+++ b/geotrek/api/tests/test_v2.py
@@ -228,7 +228,7 @@
 TOURISTIC_EVENT_DETAIL_JSON_STRUCTURE = sorted([
     'id', 'accessibility', 'approved', 'attachments', 'begin_date', 'bookable', 'booking', 'cities', 'contact', 'create_datetime',
     'description', 'description_teaser', 'districts', 'duration', 'email', 'end_date', 'external_id', 'geometry',
-    'meeting_point', 'start_time', 'meeting_time', 'end_time', 'name', 'organizer', 'organizer_id', 'capacity', 'pdf', 'place', 'portal',
+    'meeting_point', 'start_time', 'meeting_time', 'end_time', 'name', 'organizer', 'organizers', 'organizers_id', 'capacity', 'pdf', 'place', 'portal',
     'practical_info', 'provider', 'published', 'source', 'speaker', 'structure', 'target_audience', 'themes',
     'type', 'update_datetime', 'url', 'uuid', 'website', 'cancelled', 'cancellation_reason', 'participant_number'
 ])
@@ -3241,8 +3241,8 @@ def setUpTestData(cls):
             capacity=12,
             bookable=False,
             place=cls.place,
-            organizer=cls.organizer
         )
+        cls.touristic_event5.organizers.set([cls.organizer])
         cls.touristic_content = tourism_factory.TouristicContentFactory(geom=Point(0.77802, 43.047482, srid=4326))
 
     def test_touristic_event_list(self):
diff --git a/geotrek/api/v2/filters.py b/geotrek/api/v2/filters.py
index c4509eb395..0e403a340b 100644
--- a/geotrek/api/v2/filters.py
+++ b/geotrek/api/v2/filters.py
@@ -507,6 +507,7 @@ class TouristicEventFilterSet(filters.FilterSet):
         widget=CSVWidget(),
         queryset=TouristicEventOrganizer.objects.all(),
         help_text=_("Filter by one or more organizer, comma-separated."),
+        field_name="organizers"
     )
 
     help_texts = {
diff --git a/geotrek/api/v2/serializers.py b/geotrek/api/v2/serializers.py
index d7205d5222..6003640fc4 100644
--- a/geotrek/api/v2/serializers.py
+++ b/geotrek/api/v2/serializers.py
@@ -232,6 +232,14 @@ class Meta:
         )
 
 
+class TouristicOrganismSerializer(DynamicFieldsMixin, serializers.ModelSerializer):
+    class Meta:
+        model = tourism_models.TouristicEventOrganizer
+        fields = (
+            'id',
+        )
+
+
 class OrganismSerializer(DynamicFieldsMixin, serializers.ModelSerializer):
     name = serializers.CharField(source='organism')
 
@@ -503,13 +511,9 @@ def get_departure_city(self, obj):
             return city.code if city else None
 
     class TouristicEventSerializer(TouristicModelSerializer):
-        organizer = serializers.SlugRelatedField(
-            read_only=True,
-            slug_field='label'
-        )
-        organizer_id = serializers.PrimaryKeyRelatedField(
-            read_only=True
-        )
+        organizers = serializers.SerializerMethodField()
+        organizer = serializers.SerializerMethodField()
+        organizers_id = serializers.PrimaryKeyRelatedField(many=True, source='organizers', read_only=True)
         attachments = AttachmentSerializer(many=True, source='sorted_attachments')
         url = HyperlinkedIdentityField(view_name='apiv2:touristicevent-detail')
         begin_date = serializers.DateField()
@@ -545,6 +549,14 @@ def get_participant_number(self, obj):
         def get_end_date(self, obj):
             return obj.end_date or obj.begin_date
 
+        def get_organizers(self, obj):
+            return ", ".join(
+                map(lambda org: org.label, obj.organizers.all())
+            )
+
+        # for retrocompatibility of API
+        get_organizer = get_organizers
+
         class Meta(TimeStampedSerializer.Meta):
             model = tourism_models.TouristicEvent
             fields = TimeStampedSerializer.Meta.fields + (
@@ -552,7 +564,7 @@ class Meta(TimeStampedSerializer.Meta):
                 'booking', 'cancellation_reason', 'cancelled', 'capacity', 'cities',
                 'contact', 'description', 'description_teaser', 'districts', 'duration',
                 'email', 'end_date', 'end_time', 'external_id', 'geometry', 'meeting_point',
-                'meeting_time', 'name', 'organizer', 'organizer_id', 'participant_number', 'pdf', 'place',
+                'meeting_time', 'name', 'organizers', 'organizer', 'organizers_id', 'participant_number', 'pdf', 'place',
                 'portal', 'practical_info', 'provider', 'published', 'source', 'speaker',
                 'start_time', 'structure', 'target_audience', 'themes', 'type',
                 'url', 'uuid', 'website'
diff --git a/geotrek/api/v2/views/tourism.py b/geotrek/api/v2/views/tourism.py
index b70f93db22..0ac4a4bf10 100644
--- a/geotrek/api/v2/views/tourism.py
+++ b/geotrek/api/v2/views/tourism.py
@@ -95,7 +95,7 @@ def get_queryset(self):
         activate(self.request.GET.get('language'))
         return tourism_models.TouristicEvent.objects.existing()\
             .select_related('type') \
-            .prefetch_related('themes', 'source', 'portal',
+            .prefetch_related('themes', 'source', 'portal', 'organizers',
                               Prefetch('attachments',
                                        queryset=Attachment.objects.select_related('license', 'filetype', 'filetype__structure'))
                               ) \
diff --git a/geotrek/tourism/forms.py b/geotrek/tourism/forms.py
index cf5aef6169..9c2c70c8b7 100644
--- a/geotrek/tourism/forms.py
+++ b/geotrek/tourism/forms.py
@@ -95,7 +95,7 @@ class TouristicEventForm(CommonForm):
                     'contact',
                     'email',
                     'website',
-                    'organizer',
+                    'organizers',
                     'speaker',
                     'accessibility',
                     'bookable',
@@ -131,7 +131,7 @@ class TouristicEventForm(CommonForm):
     class Meta:
         fields = ['name', 'place', 'review', 'published', 'description_teaser', 'description',
                   'themes', 'begin_date', 'end_date', 'duration', 'meeting_point',
-                  'start_time', 'end_time', 'contact', 'email', 'website', 'organizer', 'speaker',
+                  'start_time', 'end_time', 'contact', 'email', 'website', 'organizers', 'speaker',
                   'type', 'accessibility', 'capacity', 'booking', 'target_audience',
                   'practical_info', 'approved', 'source', 'portal', 'geom', 'eid', 'structure', 'bookable',
                   'cancelled', 'cancellation_reason', 'preparation_duration', 'intervention_duration']
@@ -145,8 +145,8 @@ def __init__(self, *args, **kwargs):
         self.fields['start_time'].widget.attrs['placeholder'] = _('HH:MM')
         self.fields['end_time'].widget.attrs['placeholder'] = _('HH:MM')
         if self.user.has_perm("tourism.add_touristiceventorganizer"):
-            self.fields['organizer'].widget = SelectMultipleWithPop(
-                choices=self.fields['organizer'].choices,
+            self.fields['organizers'].widget = SelectMultipleWithPop(
+                choices=self.fields['organizers'].choices,
                 add_url=TouristicEventOrganizer.get_add_url()
             )
         # Since we use chosen() in trek_form.html, we don't need the default help text
diff --git a/geotrek/tourism/locale/en/LC_MESSAGES/django.po b/geotrek/tourism/locale/en/LC_MESSAGES/django.po
index 2d7fa78f4a..55ee69bd09 100644
--- a/geotrek/tourism/locale/en/LC_MESSAGES/django.po
+++ b/geotrek/tourism/locale/en/LC_MESSAGES/django.po
@@ -63,7 +63,7 @@ msgid "Start date is after end date"
 msgstr ""
 
 msgid "Label"
-msgstr "Label"
+msgstr ""
 
 msgid "Information desk type"
 msgstr ""
@@ -280,7 +280,7 @@ msgid "Event places"
 msgstr ""
 
 msgid "Organizer"
-msgstr "Organizer"
+msgstr ""
 
 msgid "Organizers"
 msgstr ""
diff --git a/geotrek/tourism/migrations/0050_auto_20231220_0952.py b/geotrek/tourism/migrations/0050_auto_20231220_0952.py
new file mode 100644
index 0000000000..14b78a3432
--- /dev/null
+++ b/geotrek/tourism/migrations/0050_auto_20231220_0952.py
@@ -0,0 +1,34 @@
+# Generated by Django 3.2.23 on 2023-12-20 09:52
+
+from django.db import migrations, models
+
+
+def forward_func(apps, schema_editors):
+    ToursticEvent = apps.get_model("tourism", "TouristicEvent")
+    for event in ToursticEvent.objects.all():
+        if event.organizer:
+            event.organizers.add(event.organizer)
+
+
+def reverse_func(apps, schema_editors):
+    pass
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('tourism', '0049_alter_touristiccontentcategory_color'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='touristicevent',
+            name='organizers',
+            field=models.ManyToManyField(blank=True, related_name='touristicevent', to='tourism.TouristicEventOrganizer', verbose_name='Organizers'),
+        ),
+        migrations.RunPython(forward_func, reverse_func),
+        migrations.RemoveField(
+            model_name='touristicevent',
+            name='organizer',
+        ),
+    ]
diff --git a/geotrek/tourism/migrations/0051_merge_20240229_1225.py b/geotrek/tourism/migrations/0051_merge_20240229_1225.py
new file mode 100644
index 0000000000..4427ced73e
--- /dev/null
+++ b/geotrek/tourism/migrations/0051_merge_20240229_1225.py
@@ -0,0 +1,14 @@
+# Generated by Django 3.2.24 on 2024-02-29 11:25
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('tourism', '0050_alter_touristiceventorganizer_label'),
+        ('tourism', '0050_auto_20231220_0952'),
+    ]
+
+    operations = [
+    ]
diff --git a/geotrek/tourism/models.py b/geotrek/tourism/models.py
index 5af120e49a..d8f429671b 100644
--- a/geotrek/tourism/models.py
+++ b/geotrek/tourism/models.py
@@ -430,8 +430,9 @@ class TouristicEvent(ZoningPropertiesMixin, AddPropertyMixin, PublishableMixin,
                               blank=True, null=True)
     website = models.URLField(verbose_name=_("Website"), max_length=256,
                               blank=True, null=True)
-    organizer = models.ForeignKey('tourism.TouristicEventOrganizer', verbose_name=_("Organizer"), blank=True, null=True,
-                                  on_delete=models.PROTECT, related_name="touristicevent")
+
+    organizers = models.ManyToManyField('tourism.TouristicEventOrganizer', verbose_name=_("Organizers"), blank=True,
+                                        related_name="touristicevent")
     speaker = models.CharField(verbose_name=_("Speaker"), max_length=256, blank=True)
     type = models.ForeignKey(TouristicEventType, verbose_name=_("Type"), blank=True, null=True, on_delete=models.PROTECT)
     accessibility = models.TextField(verbose_name=_("Accessibility"), blank=True)
diff --git a/geotrek/tourism/parsers.py b/geotrek/tourism/parsers.py
index c84e550b7e..857dab45cd 100644
--- a/geotrek/tourism/parsers.py
+++ b/geotrek/tourism/parsers.py
@@ -246,7 +246,6 @@ class TouristicEventApidaeParser(AttachmentApidaeParserMixin, ApidaeParser):
         ),
         'email': 'informations.moyensCommunication',
         'website': 'informations.moyensCommunication',
-        'organizer': 'informations.structureGestion.nom.libelleFr',
         'type': 'informationsFeteEtManifestation.typesManifestation.0.libelleFr',
         'capacity': 'informationsFeteEtManifestation.nbParticipantsAttendu',
         'practical_info': (
@@ -284,15 +283,17 @@ class TouristicEventApidaeParser(AttachmentApidaeParserMixin, ApidaeParser):
         'illustrations'
     ]
     m2m_fields = {
-        'themes': 'informationsFeteEtManifestation.themes.*.libelleFr'
+        'themes': 'informationsFeteEtManifestation.themes.*.libelleFr',
+        'organizers': ('informations.structureGestion.nom.libelleFr',),
     }
     natural_keys = {
         'themes': 'label',
         'type': 'type',
-        'organizer': 'label',
+        'organizers': 'label',
         'source': 'name',
         'portal': 'name',
     }
+    # separator = ","
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -301,7 +302,7 @@ def __init__(self, *args, **kwargs):
         self.field_options = self.field_options.copy()
         self.field_options['themes'] = {'create': True}
         self.field_options['type'] = {'create': True}
-        self.field_options['organizer'] = {'create': True}
+        self.field_options['organizers'] = {'create': True}
         if self.type is not None:
             self.constant_fields['type'] = self.type
         if self.themes is not None:
@@ -939,16 +940,17 @@ class LEITouristicEventParser(LEIParser):
                     'ADRPROD_TEL', 'ADRPROD_TEL2', 'ADRPREST_TEL', 'ADRPREST_TEL2'),
         'email': ('ADRPROD_EMAIL', 'ADRPREST_EMAIL', 'ADRPREST_EMAIL2'),
         'website': ('ADRPROD_URL', 'ADRPREST_URL'),
-        'organizer': ('RAISONSOC_PERSONNE_EN_CHARGE', 'RAISONSOC_RESPONSABLE'),
         'speaker': ('CIVILITE_RESPONSABLE', 'NOM_RESPONSABLE', 'PRENOM_RESPONSABLE'),
         'type': 'TYPE_NOM',
         'geom': ('LATITUDE', 'LONGITUDE'),
     }
-    m2m_fields = {}
+    m2m_fields = {
+        'organizers': ('RAISONSOC_PERSONNE_EN_CHARGE', 'RAISONSOC_RESPONSABLE')
+    }
     type = None
     natural_keys = {
         'category': 'label',
-        'organizer': 'label',
+        'organizers': 'label',
         'geom': {'required': True},
         'type': 'type',
     }
@@ -958,6 +960,7 @@ class LEITouristicEventParser(LEIParser):
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
+        self.field_options['organizers'] = {'create': True}
         if self.type:
             self.constant_fields['type'] = self.type
 
@@ -966,9 +969,9 @@ def filter_description_teaser(self, src, val):
             val = val.replace('\n', '<br>')
         return val
 
-    def filter_organizer(self, src, val):
+    def filter_organizers(self, src, val):
         (first, second) = val
-        return self.apply_filter('organizer', src, [first if first else second])
+        return self.apply_filter('organizers', src, [first if first else second])
 
     def filter_speaker(self, src, val):
         (civilite, nom, prenom) = val
diff --git a/geotrek/tourism/serializers.py b/geotrek/tourism/serializers.py
index 15682805ab..6ff6b59977 100644
--- a/geotrek/tourism/serializers.py
+++ b/geotrek/tourism/serializers.py
@@ -182,6 +182,7 @@ class TouristicEventAPISerializer(PicturesSerializerMixin, PublishableSerializer
     source = RecordSourceSerializer(many=True)
     portal = TargetPortalSerializer(many=True)
     structure = StructureSerializer()
+    organizers = rest_serializers.SerializerMethodField(source="organizers")
 
     # Nearby
     touristic_contents = CloseTouristicContentSerializer(many=True, source='published_touristic_contents')
@@ -193,6 +194,11 @@ class TouristicEventAPISerializer(PicturesSerializerMixin, PublishableSerializer
     type1 = TouristicEventTypeSerializer(many=True)
     category = rest_serializers.SerializerMethodField()
 
+    def get_organizers(self, obj):
+        return ", ".join(
+            map(lambda org: org.label, obj.organizers.all())
+        )
+
     def __init__(self, instance=None, *args, **kwargs):
         super().__init__(instance, *args, **kwargs)
         if 'geotrek.diving' in settings.INSTALLED_APPS:
@@ -205,7 +211,7 @@ class Meta:
         fields = (
             'id', 'accessibility', 'approved', 'begin_date', 'booking',
             'capacity', 'category', 'contact', 'description', 'description_teaser',
-            'duration', 'email', 'end_date', 'end_time', 'meeting_point', 'organizer',
+            'duration', 'email', 'end_date', 'end_time', 'meeting_point', 'organizers',
             'pois', 'portal', 'practical_info', 'source', 'speaker', 'start_time',
             'structure', 'target_audience', 'themes', 'touristic_contents', 'touristic_events',
             'treks', 'type', 'type1', 'website'
diff --git a/geotrek/tourism/templates/tourism/sql/post_20_views.sql b/geotrek/tourism/templates/tourism/sql/post_20_views.sql
index 2718db6fb1..6524aa1e83 100644
--- a/geotrek/tourism/templates/tourism/sql/post_20_views.sql
+++ b/geotrek/tourism/templates/tourism/sql/post_20_views.sql
@@ -196,7 +196,7 @@ SELECT a.id,
        {% for lang in MODELTRANSLATION_LANGUAGES %}
         a.meeting_point_{{ lang }} AS "Meeting point {{ lang }}",
        {% endfor %}
-       d.label AS "Organizer",
+       o.labels AS "Organizers",
        {% for lang in MODELTRANSLATION_LANGUAGES %}
         a.accessibility_{{ lang }} AS "Accessibility {{ lang }}",
        {% endfor %}
@@ -218,7 +218,6 @@ SELECT a.id,
 FROM public.tourism_touristicevent a
 LEFT JOIN public.tourism_touristiceventtype b ON a.type_id = b.id
 LEFT JOIN public.authent_structure c ON a.structure_id = c.id
-LEFT JOIN public.tourism_touristiceventorganizer d ON a.organizer_id = d.id
 LEFT JOIN public.tourism_cancellationreason cr ON a.cancellation_reason_id = cr.id
 LEFT JOIN public.tourism_touristiceventplace p ON a.place_id = p.id
 LEFT JOIN LATERAL (
@@ -240,6 +239,13 @@ LEFT JOIN
      JOIN tourism_touristicevent_themes b ON a.id = b.theme_id
      JOIN tourism_touristicevent c ON b.touristicevent_id = c.id
      GROUP BY c.id) h ON a.id = h.id
+LEFT JOIN
+    (SELECT c.id,
+            array_to_string(ARRAY_AGG (a.label ORDER BY a.id), ', ', '_') labels
+     FROM tourism_touristiceventorganizer a
+     JOIN tourism_touristicevent_organizers b ON a.id = b.touristiceventorganizer_id
+     JOIN tourism_touristicevent c ON b.touristicevent_id = c.id
+     GROUP BY c.id) o ON a.id = o.id
 WHERE deleted IS FALSE 
 ;
 
diff --git a/geotrek/tourism/templates/tourism/touristicevent_detail_attributes.html b/geotrek/tourism/templates/tourism/touristicevent_detail_attributes.html
index f23b02b5a7..a0bd44fb64 100644
--- a/geotrek/tourism/templates/tourism/touristicevent_detail_attributes.html
+++ b/geotrek/tourism/templates/tourism/touristicevent_detail_attributes.html
@@ -79,8 +79,9 @@ <h3>{% trans "Attributes" %}</h3>
             <td>{% if object.website %}<a href="{{ object.website }}" target="_blank">{{ object.website }}</a>{% endif %}</td>
         </tr>
         <tr>
-            <th>{{ object|verbose:"organizer" }}</th>
-            <td>{% if object.organizer %}{{ object.organizer }}
+            <th>{{ object|verbose:"organizers" }}</th>
+            <td>{% if object.organizers %}
+                    {% valuelist object.organizers.all %}
                 {% else %}<span class="none">{% trans "None" %}</span>{% endif %}</td>
         </tr>
         <tr>
diff --git a/geotrek/tourism/tests/test_forms.py b/geotrek/tourism/tests/test_forms.py
index 8760f09f70..822b05d073 100644
--- a/geotrek/tourism/tests/test_forms.py
+++ b/geotrek/tourism/tests/test_forms.py
@@ -1,5 +1,4 @@
-
-from django.forms.widgets import Select
+from django.forms.widgets import SelectMultiple
 from django.test import TestCase
 from django.contrib.auth.models import Permission
 
@@ -9,7 +8,7 @@
 from geotrek.tourism.forms import TouristicEventForm
 
 
-class PathFormTest(TestCase):
+class TouristicEventFormTestCase(TestCase):
     def test_begin_end_time(self):
         data = {
             'geom': '{"type": "Point", "coordinates":[0, 0]}',
@@ -92,20 +91,20 @@ def test_begin_end_date(self):
 
     def test_organizers_widget_select(self):
         # if user has 'add_touristiceventorganizer' permission the widget must be a SelectMultipleWithPop
-        # otherwith a Select
+        # otherwise a Select
         form = TouristicEventForm(
             user=UserFactory(),
             data={}
         )
-        assert type(form.fields['organizer'].widget) is Select
+        self.assertEqual(type(form.fields['organizers'].widget), SelectMultiple)
 
     def test_organizers_widget_select_multiple_with_pop(self):
         # if user has 'add_touristiceventorganizer' permission the widget must be a SelectMultipleWithPop
-        # otherwith a Select
+        # otherwise a Select
         user = UserFactory()
         user.user_permissions.add(Permission.objects.get(codename='add_touristiceventorganizer'))
         form = TouristicEventForm(
             user=user,
             data={}
         )
-        assert type(form.fields['organizer'].widget) is SelectMultipleWithPop
+        self.assertEqual(type(form.fields['organizers'].widget), SelectMultipleWithPop)
diff --git a/geotrek/tourism/tests/test_functional.py b/geotrek/tourism/tests/test_functional.py
index cdc517a28b..96e337714f 100644
--- a/geotrek/tourism/tests/test_functional.py
+++ b/geotrek/tourism/tests/test_functional.py
@@ -219,7 +219,7 @@ def get_expected_json_attrs(self):
             'start_time': None,
             'end_time': None,
             'name': 'Touristic event',
-            'organizer': None,
+            'organizers': '',
             'capacity': None,
             'pictures': [],
             'pois': [],
@@ -368,7 +368,7 @@ def test_csv_participants_count(self):
         total_count = sum(map(attrgetter('count'), counts))
         self.assertEqual(event.participants_total, total_count)
         self.assertEqual(event.participants_total_verbose_name, "Number of participants")
-        with self.assertNumQueries(15):
+        with self.assertNumQueries(16):
             response = self.client.get(event.get_format_list_url())
         self.assertEqual(response.status_code, 200)
         self.assertEqual(response.get('Content-Type'), 'text/csv')
diff --git a/geotrek/tourism/tests/test_parsers.py b/geotrek/tourism/tests/test_parsers.py
index 5966c44a49..9be26d95a6 100644
--- a/geotrek/tourism/tests/test_parsers.py
+++ b/geotrek/tourism/tests/test_parsers.py
@@ -461,13 +461,16 @@ def mocked_json():
         self.assertIn("<b>Langues Parlées:</b><br>Français<br>", event.practical_info)
         self.assertIn("<b>Accès:</b><br>TestFr<br>", event.practical_info)
         self.assertTrue(event.published)
-        self.assertEqual(str(event.organizer), 'Toto')
         self.assertEqual(str(event.start_time), '09:00:00')
         self.assertEqual(event.type.type, 'Sports')
         self.assertQuerysetEqual(
             event.themes.all(),
             ['<Theme: Cyclisme>', '<Theme: Sports cyclistes>']
         )
+        self.assertQuerysetEqual(
+            event.organizers.all(),
+            ['<TouristicEventOrganizer: Toto>']
+        )
         self.assertEqual(Attachment.objects.count(), 3)
         self.assertEqual(TouristicEventApidaeParser().filter_capacity("capacity", "12"), 12)
 
@@ -871,6 +874,10 @@ def mocked_requests_get(*args, **kwargs):
         self.assertIn("Description A", event.description)
         self.assertEqual(Attachment.objects.count(), 2)
         self.assertEqual(Attachment.objects.first().content_object, event)
+        self.assertQuerysetEqual(
+            event.organizers.all(),
+            ['<TouristicEventOrganizer: Resp Event A>']
+        )
 
 
 class TestGeotrekTouristicContentParser(GeotrekTouristicContentParser):
diff --git a/geotrek/tourism/tests/test_views.py b/geotrek/tourism/tests/test_views.py
index 2f74685c48..dc79694507 100644
--- a/geotrek/tourism/tests/test_views.py
+++ b/geotrek/tourism/tests/test_views.py
@@ -372,7 +372,7 @@ def test_expected_properties(self):
             'cities', 'contact', 'description', 'description_teaser',
             'districts', 'duration', 'email', 'end_date', 'filelist_url', 'files',
             'id', 'map_image_url', 'meeting_point', 'start_time', 'end_time', 'name',
-            'organizer', 'capacity', 'pictures', 'pois', 'portal', 'practical_info',
+            'organizers', 'capacity', 'pictures', 'pois', 'portal', 'practical_info',
             'printable', 'publication_date', 'published', 'published_status',
             'slug', 'source', 'speaker', 'structure', 'target_audience', 'themes',
             'thumbnail', 'touristic_contents', 'touristic_events', 'treks', 'type',
diff --git a/geotrek/tourism/views.py b/geotrek/tourism/views.py
index f9fb011292..416bc0b539 100644
--- a/geotrek/tourism/views.py
+++ b/geotrek/tourism/views.py
@@ -204,7 +204,7 @@ class TouristicEventFormatList(MapEntityFormat, TouristicEventList):
     default_extra_columns = [
         'structure', 'eid', 'name', 'type', 'description_teaser', 'description', 'themes',
         'begin_date', 'end_date', 'duration', 'meeting_point', 'start_time', 'end_time',
-        'contact', 'email', 'website', 'organizer', 'speaker', 'accessibility', 'bookable',
+        'contact', 'email', 'website', 'organizers', 'speaker', 'accessibility', 'bookable',
         'capacity', 'booking', 'target_audience', 'practical_info',
         'date_insert', 'date_update', 'source', 'portal',
         'review', 'published', 'publication_date',