diff --git a/app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsReaderScreen.kt b/app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsReaderScreen.kt
index 04af7edc77ed..7422c3f50799 100644
--- a/app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsReaderScreen.kt
+++ b/app/src/main/java/eu/kanade/presentation/more/settings/screen/SettingsReaderScreen.kt
@@ -178,6 +178,11 @@ object SettingsReaderScreen : SearchableSettings {
                     pref = readerPreferences.skipDupe(),
                     title = stringResource(MR.strings.pref_skip_dupe_chapters),
                 ),
+                Preference.PreferenceItem.SwitchPreference(
+                    pref = readerPreferences.markReadDupe(),
+                    title = stringResource(MR.strings.pref_mark_read_dupe_chapters),
+                    subtitle = stringResource(MR.strings.pref_mark_read_dupe_chapters_summary),
+                ),
                 Preference.PreferenceItem.SwitchPreference(
                     pref = readerPreferences.alwaysShowChapterTransition(),
                     title = stringResource(MR.strings.pref_always_show_chapter_transition),
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt
index 93274f254c72..cb17c5fd1d31 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderViewModel.kt
@@ -9,6 +9,7 @@ import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import eu.kanade.domain.base.BasePreferences
+import eu.kanade.domain.chapter.interactor.SetReadStatus
 import eu.kanade.domain.chapter.model.toDbChapter
 import eu.kanade.domain.manga.interactor.SetMangaViewerFlags
 import eu.kanade.domain.manga.model.readerOrientation
@@ -129,6 +130,7 @@ class ReaderViewModel @JvmOverloads constructor(
     private val getMergedMangaById: GetMergedMangaById = Injekt.get(),
     private val getMergedReferencesById: GetMergedReferencesById = Injekt.get(),
     private val getMergedChaptersByMangaId: GetMergedChaptersByMangaId = Injekt.get(),
+    private val setReadStatus: SetReadStatus = Injekt.get()
     // SY <--
 ) : ViewModel() {
 
@@ -691,6 +693,13 @@ class ReaderViewModel @JvmOverloads constructor(
                 // SY <--
                 readerChapter.chapter.read = true
                 // SY -->
+                if (readerPreferences.markReadDupe().get()) {
+                    getChaptersByMangaId.await(manga!!.id).sortedByDescending { it.sourceOrder }
+                        .filter { 
+                            !it.read && it.chapterNumber > 0.0 && it.chapterNumber.toFloat() == readerChapter.chapter.chapter_number 
+                        }
+                        .also { setReadStatus.await(true, *it.toTypedArray()) }
+                }
                 if (manga?.isEhBasedManga() == true) {
                     viewModelScope.launchNonCancellable {
                         val chapterUpdates = chapterList
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/setting/ReaderPreferences.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/setting/ReaderPreferences.kt
index e81d948b0789..d5cf6d844adb 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/setting/ReaderPreferences.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/setting/ReaderPreferences.kt
@@ -78,6 +78,8 @@ class ReaderPreferences(
 
     fun skipDupe() = preferenceStore.getBoolean("skip_dupe", false)
 
+    fun markReadDupe() = preferenceStore.getBoolean("mark_read_dupe", false)
+
     // endregion
 
     // region Split two page spread
diff --git a/i18n/src/commonMain/resources/MR/base/strings.xml b/i18n/src/commonMain/resources/MR/base/strings.xml
index bba159c9170a..22ede657df4d 100755
--- a/i18n/src/commonMain/resources/MR/base/strings.xml
+++ b/i18n/src/commonMain/resources/MR/base/strings.xml
@@ -384,6 +384,8 @@
     <string name="pref_skip_read_chapters">Skip chapters marked read</string>
     <string name="pref_skip_filtered_chapters">Skip filtered chapters</string>
     <string name="pref_skip_dupe_chapters">Skip duplicate chapters</string>
+    <string name="pref_mark_read_dupe_chapters">Mark duplicate chapters as read</string>
+    <string name="pref_mark_read_dupe_chapters_summary">Mark duplicate chapters as read after reading</string>
     <string name="pref_reader_navigation">Navigation</string>
     <string name="pref_read_with_volume_keys">Volume keys</string>
     <string name="pref_read_with_volume_keys_inverted">Invert volume keys</string>