diff --git a/apps/dataset-catalog/app/context/themes/index.tsx b/apps/dataset-catalog/app/context/themes/index.tsx
new file mode 100644
index 000000000..40c048ba7
--- /dev/null
+++ b/apps/dataset-catalog/app/context/themes/index.tsx
@@ -0,0 +1,57 @@
+'use client';
+import { getLosThemes, getDataThemes } from '@catalog-frontend/data-access';
+import { LosTheme, DataTheme } from '@catalog-frontend/types';
+import React, { createContext, useEffect, useState, ReactNode } from 'react';
+
+type ThemesContextType = {
+  losThemes: LosTheme[];
+  dataThemes: DataTheme[];
+  loading: boolean;
+  error: string | null;
+};
+
+const ThemesContext = createContext<ThemesContextType | undefined>(undefined);
+
+export const ThemesProvider = ({ children }: { children: ReactNode }) => {
+  const [losThemes, setLosThemes] = useState<LosTheme[]>([]);
+  const [dataThemes, setDataThemes] = useState<DataTheme[]>([]);
+  const [loading, setLoading] = useState<boolean>(true);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    const fetchThemes = async () => {
+      setLoading(true);
+      try {
+        const [los, data] = await Promise.all([getLosThemes(), getDataThemes()]);
+        const losThemesData = await los.json();
+        const dataThemesData = await data.json();
+
+        setLosThemes(losThemesData.losNodes.flat());
+        setDataThemes(dataThemesData.dataThemes);
+      } catch (err) {
+        console.error(`Failed to fetch reference-data, ${err}`);
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    fetchThemes();
+  }, []);
+
+  const value = {
+    losThemes,
+    dataThemes,
+    loading,
+    error,
+  };
+
+  return <ThemesContext.Provider value={value}>{children}</ThemesContext.Provider>;
+};
+
+export const useThemes = () => {
+  const context = React.useContext(ThemesContext);
+  if (context === undefined) {
+    throw new Error('useThemes must be used within a ThemesProvider');
+  }
+  return context;
+};
diff --git a/apps/dataset-catalog/app/layout.tsx b/apps/dataset-catalog/app/layout.tsx
index 7918c7069..d0b1060d1 100644
--- a/apps/dataset-catalog/app/layout.tsx
+++ b/apps/dataset-catalog/app/layout.tsx
@@ -1,6 +1,7 @@
 import { Layout, NextAuthProvider, ReactQueryClientProvider } from '@catalog-frontend/ui';
 import { localization } from '@catalog-frontend/utils';
 import { Metadata } from 'next';
+import { ThemesProvider } from './context/themes';
 
 export const metadata: Metadata = {
   title: localization.catalogType.dataset,
diff --git a/apps/dataset-catalog/components/dataset-form/dataset-form-tema-section.tsx b/apps/dataset-catalog/components/dataset-form/dataset-form-tema-section.tsx
new file mode 100644
index 000000000..120295a88
--- /dev/null
+++ b/apps/dataset-catalog/components/dataset-form/dataset-form-tema-section.tsx
@@ -0,0 +1,124 @@
+import { Dataset, Option } from '@catalog-frontend/types';
+import { FormContainer, TitleWithTag } from '@catalog-frontend/ui';
+import { useThemes } from '../../app/context/themes/index';
+import { Combobox, Spinner } from '@digdir/designsystemet-react';
+import { getTranslateText, localization } from '@catalog-frontend/utils';
+import { Field, FormikErrors, useFormikContext } from 'formik';
+import styles from './dataset-form.module.css';
+
+export const TemaSection = () => {
+  const { losThemes, dataThemes, loading } = useThemes();
+  const { setFieldValue, values, errors } = useFormikContext<Dataset>();
+
+  const getNameFromLosPath = (path: string): string | string[] => {
+    const obj = losThemes?.find((obj) => obj.losPaths.includes(path));
+    return obj ? getTranslateText(obj.name) : [];
+  };
+
+  const getParentNames = (inputPaths: string[]): string => {
+    const results: string[] = [];
+
+    inputPaths.forEach((path) => {
+      const parts = path.split('/').slice(0, -1);
+      const parentPath = parts.slice(0, -1).join('/');
+      const childPath = parts.join('/');
+
+      const parentName = getNameFromLosPath(parentPath);
+      const childName = getNameFromLosPath(childPath);
+
+      const formattedResult = `${parentName} - ${childName}`;
+      results.push(formattedResult);
+    });
+
+    return `${localization.datasetForm.helptext.parentTheme}: ${results.join('; ')}`;
+  };
+
+  const containsFilter = (inputValue: string, option: Option): boolean => {
+    return option.label.toLowerCase().includes(inputValue.toLowerCase());
+  };
+
+  return (
+    <FormContainer>
+      <FormContainer.Header
+        title={localization.datasetForm.heading.losTheme}
+        subtitle={localization.datasetForm.helptext.theme}
+      />
+      <>
+        <div className={styles.combobox}>
+          <TitleWithTag
+            title={localization.datasetForm.fieldLabel.losTheme}
+            tagTitle={localization.tag.recommended}
+            tagColor='info'
+          />
+          {loading ? (
+            <div className={styles.spinner}>
+              <Spinner title={`${localization.loading}...`} />
+            </div>
+          ) : (
+            <Field
+              as={Combobox}
+              name='losThemeList'
+              value={values.losThemeList}
+              multiple
+              virtual
+              filter={containsFilter}
+              placeholder={`${localization.search.search}...`}
+              onValueChange={(values: string[]) => setFieldValue('losThemeList', values)}
+            >
+              <Combobox.Empty>{localization.search.noHits}</Combobox.Empty>
+              {losThemes?.map((theme) => (
+                <Combobox.Option
+                  key={theme.uri}
+                  value={theme.uri}
+                  description={getParentNames(theme.losPaths)}
+                >
+                  {getTranslateText(theme.name)}
+                </Combobox.Option>
+              ))}
+            </Field>
+          )}
+        </div>
+      </>
+      <FormContainer.Header
+        title={localization.datasetForm.heading.euTheme}
+        subtitle={localization.datasetForm.helptext.theme}
+      />
+      <>
+        <div className={styles.combobox}>
+          <TitleWithTag
+            title={localization.datasetForm.fieldLabel.euTheme}
+            tagTitle={localization.tag.required}
+          />
+          {loading ? (
+            <div className={styles.spinner}>
+              <Spinner title={`${localization.loading}...`} />
+            </div>
+          ) : (
+            <Field
+              as={Combobox}
+              multiple
+              filter={containsFilter}
+              placeholder={`${localization.search.search}...`}
+              error={errors.euThemeList}
+              value={values.euThemeList}
+              onValueChange={(values: string[]) => setFieldValue('euThemeList', values)}
+            >
+              <Combobox.Empty>{localization.search.noHits}</Combobox.Empty>
+              {dataThemes &&
+                dataThemes.map((eutheme) => (
+                  <Combobox.Option
+                    key={eutheme.uri}
+                    value={eutheme.uri}
+                  >
+                    {getTranslateText(eutheme.label)}
+                  </Combobox.Option>
+                ))}
+            </Field>
+          )}
+        </div>
+      </>
+    </FormContainer>
+  );
+};
+
+export default TemaSection;
diff --git a/libs/data-access/src/index.ts b/libs/data-access/src/index.ts
index 69d5b73a7..762e9bb81 100644
--- a/libs/data-access/src/index.ts
+++ b/libs/data-access/src/index.ts
@@ -5,7 +5,7 @@ export * from './lib/catalog-history/api';
 export * from './lib/concept/api';
 export * from './lib/organization/api';
 export * from './lib/reference-data/api';
-export * from './lib/reference-data/generated/graphql';
+export * as ReferenceDataGraphql from './lib/reference-data/generated/graphql';
 export * from './lib/search/api';
 export * from './lib/code-list/api';
 export * from './lib/users/api';
@@ -17,6 +17,6 @@ export * from './lib/statuses/api';
 export * from './lib/datasets/api';
 export * from './lib/data-service/api';
 export * from './lib/records-of-processing-activities/api';
-export * from './lib/strapi/generated/graphql';
+export * as StrapiGraphql from './lib/strapi/generated/graphql';
 export * from './lib/strapi/service-messages';
 export * from './lib/enhetsregisteret';
diff --git a/libs/data-access/src/lib/themes/api/index.tsx b/libs/data-access/src/lib/themes/api/index.tsx
new file mode 100644
index 000000000..05d0ce8f5
--- /dev/null
+++ b/libs/data-access/src/lib/themes/api/index.tsx
@@ -0,0 +1,19 @@
+export const getLosThemes = async () => {
+  const resource = `https://staging.fellesdatakatalog.digdir.no/reference-data/los/themes-and-words`; //env-variabel kommer i neste PR
+  const options = {
+    headers: {
+      'Content-Type': 'application/json',
+    },
+  };
+  return await fetch(resource, options);
+};
+
+export const getDataThemes = async () => {
+  const resource = `https://staging.fellesdatakatalog.digdir.no/reference-data/eu/data-themes`; //env-variabel kommer i neste PR
+  const options = {
+    headers: {
+      'Content-Type': 'application/json',
+    },
+  };
+  return await fetch(resource, options);
+};
diff --git a/libs/types/src/lib/theme.ts b/libs/types/src/lib/theme.ts
new file mode 100644
index 000000000..1077842a6
--- /dev/null
+++ b/libs/types/src/lib/theme.ts
@@ -0,0 +1,24 @@
+import { UriWIthLabel } from './dataset';
+import { LocalizedStrings } from './localization';
+
+export interface LosTheme {
+  children?: null;
+  parents?: string[];
+  isTheme?: boolean;
+  losPaths: string[];
+  name?: LocalizedStrings;
+  definition?: null;
+  uri: string;
+  synonyms?: string[];
+  relatedTerms?: null;
+  theme?: boolean;
+  internalId: null;
+}
+
+export interface DataTheme {
+  uri: string;
+  code?: string;
+  label: LocalizedStrings;
+  startUse?: string;
+  conceptSchema?: UriWIthLabel;
+}