diff --git a/apps/theming/lib/Listener/BeforePreferenceListener.php b/apps/theming/lib/Listener/BeforePreferenceListener.php
index d823df1ab33c2..78e2f3c447c58 100644
--- a/apps/theming/lib/Listener/BeforePreferenceListener.php
+++ b/apps/theming/lib/Listener/BeforePreferenceListener.php
@@ -22,7 +22,15 @@ class BeforePreferenceListener implements IEventListener {
 	/**
 	 * @var string[]
 	 */
-	private const ALLOWED_KEYS = ['force_enable_blur_filter', 'shortcuts_disabled', 'primary_color'];
+	private const ALLOWED_KEYS = ['force_enable_blur_filter', 'shortcuts_disabled', 'primary_color', 'toast_timeout'];
+
+	/**
+	 * Allowed toast timeout values in milliseconds.
+	 * Default (7000) is represented by deleting the preference.
+	 *
+	 * @var string[]
+	 */
+	public const TOAST_TIMEOUT_VALUES = ['15000', '30000', '-1'];
 
 	public function __construct(
 		private IAppManager $appManager,
@@ -62,6 +70,9 @@ private function handleThemingValues(BeforePreferenceSetEvent|BeforePreferenceDe
 				case 'primary_color':
 					$event->setValid(preg_match('/^\#([0-9a-f]{3}|[0-9a-f]{6})$/i', $event->getConfigValue()) === 1);
 					break;
+				case 'toast_timeout':
+					$event->setValid(in_array($event->getConfigValue(), self::TOAST_TIMEOUT_VALUES, true));
+					break;
 				default:
 					$event->setValid(false);
 			}
diff --git a/apps/theming/lib/Listener/BeforeTemplateRenderedListener.php b/apps/theming/lib/Listener/BeforeTemplateRenderedListener.php
index 3a62d8ebdf32b..88a307067d434 100644
--- a/apps/theming/lib/Listener/BeforeTemplateRenderedListener.php
+++ b/apps/theming/lib/Listener/BeforeTemplateRenderedListener.php
@@ -51,6 +51,17 @@ public function handle(Event $event): void {
 				}
 				return false;
 			});
+
+			$this->initialState->provideLazyInitialState('toastTimeout', function () {
+				if ($this->userSession->getUser()) {
+					$uid = $this->userSession->getUser()->getUID();
+					$value = $this->config->getUserValue($uid, Application::APP_ID, 'toast_timeout', '7000');
+					if (in_array($value, BeforePreferenceListener::TOAST_TIMEOUT_VALUES, true) || $value === '7000') {
+						return (int)$value;
+					}
+				}
+				return 7000;
+			});
 		}
 
 		$this->themeInjectionService->injectHeaders();
diff --git a/apps/theming/src/components/UserSectionToastTimeout.vue b/apps/theming/src/components/UserSectionToastTimeout.vue
new file mode 100644
index 0000000000000..5506cdab0f9c2
--- /dev/null
+++ b/apps/theming/src/components/UserSectionToastTimeout.vue
@@ -0,0 +1,112 @@
+<!--
+  - SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+  - SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
+<script setup lang="ts">
+import axios from '@nextcloud/axios'
+import {
+	setToastTimeout,
+	showError,
+	TOAST_DEFAULT_TIMEOUT,
+	TOAST_PERMANENT_TIMEOUT,
+} from '@nextcloud/dialogs'
+import { loadState } from '@nextcloud/initial-state'
+import { t } from '@nextcloud/l10n'
+import { generateOcsUrl } from '@nextcloud/router'
+import { computed, ref } from 'vue'
+import NcCheckboxRadioSwitch from '@nextcloud/vue/components/NcCheckboxRadioSwitch'
+import NcSettingsSection from '@nextcloud/vue/components/NcSettingsSection'
+import { logger } from '../utils/logger.ts'
+
+const TOAST_TIMEOUT_DEFAULT = String(TOAST_DEFAULT_TIMEOUT)
+const TOAST_TIMEOUT_15S = '15000'
+const TOAST_TIMEOUT_30S = '30000'
+const TOAST_TIMEOUT_NEVER = String(TOAST_PERMANENT_TIMEOUT)
+
+const toastTimeout = ref(String(loadState('theming', 'toastTimeout', TOAST_DEFAULT_TIMEOUT)))
+
+const options = computed(() => [
+	{
+		value: TOAST_TIMEOUT_DEFAULT,
+		label: t('theming', 'Default ({time} seconds)', { time: TOAST_DEFAULT_TIMEOUT / 1000 }),
+	},
+	{
+		value: TOAST_TIMEOUT_15S,
+		label: t('theming', '15 seconds'),
+	},
+	{
+		value: TOAST_TIMEOUT_30S,
+		label: t('theming', '30 seconds'),
+	},
+	{
+		value: TOAST_TIMEOUT_NEVER,
+		label: t('theming', 'Never dismiss'),
+	},
+])
+
+/**
+ * Persist and apply the selected toast timeout
+ *
+ * @param value - Selected timeout preference value
+ */
+async function updateToastTimeout(value: string | number | boolean) {
+	const nextValue = String(value)
+	const previous = toastTimeout.value
+	toastTimeout.value = nextValue
+	setToastTimeout(Number(nextValue))
+
+	const url = generateOcsUrl('apps/provisioning_api/api/v1/config/users/{appId}/{configKey}', {
+		appId: 'theming',
+		configKey: 'toast_timeout',
+	})
+
+	try {
+		if (nextValue === TOAST_TIMEOUT_DEFAULT) {
+			await axios.delete(url)
+		} else {
+			await axios.post(url, {
+				configValue: nextValue,
+			})
+		}
+	} catch (error) {
+		toastTimeout.value = previous
+		setToastTimeout(Number(previous))
+		logger.error('Could not update toast timeout', { error })
+		showError(t('theming', 'Could not update toast timeout'))
+	}
+}
+</script>
+
+<template>
+	<NcSettingsSection
+		:name="t('theming', 'Toast notifications')"
+		:description="t('theming', 'Set how long toast messages stay visible. Choose a longer duration if you need more time to read them.')">
+		<fieldset class="toast-timeout">
+			<legend class="hidden-visually">
+				{{ t('theming', 'Toast timeout') }}
+			</legend>
+			<NcCheckboxRadioSwitch
+				v-for="option in options"
+				:key="option.value"
+				:modelValue="toastTimeout"
+				type="radio"
+				name="toast_timeout"
+				:value="option.value"
+				@update:modelValue="updateToastTimeout">
+				{{ option.label }}
+			</NcCheckboxRadioSwitch>
+		</fieldset>
+	</NcSettingsSection>
+</template>
+
+<style scoped lang="scss">
+.toast-timeout {
+	display: flex;
+	flex-direction: column;
+	gap: 4px;
+	border: 0;
+	margin: 0;
+	padding: 0;
+}
+</style>
diff --git a/apps/theming/src/theming.ts b/apps/theming/src/theming.ts
index 4678efe37a319..4187da73a9e56 100644
--- a/apps/theming/src/theming.ts
+++ b/apps/theming/src/theming.ts
@@ -3,6 +3,12 @@
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
+import { setToastTimeout, TOAST_DEFAULT_TIMEOUT } from '@nextcloud/dialogs'
 import { loadState } from '@nextcloud/initial-state'
 
 window.OCA.Theming = loadState('theming', 'data')
+
+const toastTimeout = loadState('theming', 'toastTimeout', TOAST_DEFAULT_TIMEOUT)
+if (typeof toastTimeout === 'number') {
+	setToastTimeout(toastTimeout)
+}
diff --git a/apps/theming/src/views/UserTheming.vue b/apps/theming/src/views/UserTheming.vue
index 6ecee83202e7a..7bb7128547e0d 100644
--- a/apps/theming/src/views/UserTheming.vue
+++ b/apps/theming/src/views/UserTheming.vue
@@ -49,6 +49,7 @@
 	</template>
 
 	<UserSectionHotkeys />
+	<UserSectionToastTimeout />
 	<UserSectionAppMenu />
 </template>
 
@@ -68,6 +69,7 @@ import UserSectionAppMenu from '../components/UserSectionAppMenu.vue'
 import UserSectionBackground from '../components/UserSectionBackground.vue'
 import UserSectionHotkeys from '../components/UserSectionHotkeys.vue'
 import UserSectionPrimaryColor from '../components/UserSectionPrimaryColor.vue'
+import UserSectionToastTimeout from '../components/UserSectionToastTimeout.vue'
 import { refreshStyles } from '../utils/refreshStyles.js'
 
 const isUserThemingDisabled = loadState('theming', 'isUserThemingDisabled')