diff --git a/app/kubernetes/__module.js b/app/kubernetes/__module.js
index 5fb223a40..1ccd16aa9 100644
--- a/app/kubernetes/__module.js
+++ b/app/kubernetes/__module.js
@@ -473,7 +473,7 @@ angular.module('portainer.kubernetes', ['portainer.app', registriesModule, custo
       },
     };
 
-    const resourcePools = {
+    const namespaces = {
       name: 'kubernetes.resourcePools',
       url: '/namespaces',
       views: {
@@ -499,7 +499,7 @@ angular.module('portainer.kubernetes', ['portainer.app', registriesModule, custo
       },
     };
 
-    const resourcePool = {
+    const namespace = {
       name: 'kubernetes.resourcePools.resourcePool',
       url: '/:id?tab',
       views: {
@@ -681,9 +681,9 @@ angular.module('portainer.kubernetes', ['portainer.app', registriesModule, custo
     $stateRegistryProvider.register(node);
     $stateRegistryProvider.register(nodeStats);
     $stateRegistryProvider.register(kubectlShell);
-    $stateRegistryProvider.register(resourcePools);
+    $stateRegistryProvider.register(namespaces);
     $stateRegistryProvider.register(namespaceCreation);
-    $stateRegistryProvider.register(resourcePool);
+    $stateRegistryProvider.register(namespace);
     $stateRegistryProvider.register(namespaceAccess);
     $stateRegistryProvider.register(volumes);
     $stateRegistryProvider.register(volume);
diff --git a/app/react/kubernetes/applications/DetailsView/ApplicationDetailsView.tsx b/app/react/kubernetes/applications/DetailsView/ApplicationDetailsView.tsx
index 5f343c29d..7cdb9eb69 100644
--- a/app/react/kubernetes/applications/DetailsView/ApplicationDetailsView.tsx
+++ b/app/react/kubernetes/applications/DetailsView/ApplicationDetailsView.tsx
@@ -2,6 +2,7 @@ import { AlertTriangle, Code, History, Minimize2 } from 'lucide-react';
 import { useCurrentStateAndParams } from '@uirouter/react';
 
 import LaptopCode from '@/assets/ico/laptop-code.svg?c';
+import { useNamespaceAccessRedirect } from '@/react/kubernetes/namespaces/hooks/useNamespaceAccessRedirect';
 
 import { PageHeader } from '@@/PageHeader';
 import { Tab, WidgetTabs, findSelectedTabIndex } from '@@/Widget/WidgetTabs';
@@ -30,6 +31,7 @@ export function ApplicationDetailsView() {
   const {
     params: { namespace, name },
   } = stateAndParams;
+  useNamespaceAccessRedirect(namespace, { to: 'kubernetes.applications' });
 
   // placements table data
   const { placementsData, isPlacementsTableLoading, hasPlacementWarning } =
diff --git a/app/react/kubernetes/helm/HelmApplicationView/HelmApplicationView.test.tsx b/app/react/kubernetes/helm/HelmApplicationView/HelmApplicationView.test.tsx
index 2e0f3b4da..aad448436 100644
--- a/app/react/kubernetes/helm/HelmApplicationView/HelmApplicationView.test.tsx
+++ b/app/react/kubernetes/helm/HelmApplicationView/HelmApplicationView.test.tsx
@@ -156,6 +156,20 @@ function createCommonHandlers() {
     http.get('/api/endpoints/3/kubernetes/helm/test-release/history', () =>
       HttpResponse.json(helmReleaseHistory)
     ),
+    http.get('/api/kubernetes/3/namespaces', () =>
+      HttpResponse.json([
+        {
+          Id: 'default',
+          Name: 'default',
+          Status: { phase: 'Active' },
+          Annotations: null,
+          CreationDate: '2021-01-01T00:00:00Z',
+          NamespaceOwner: '',
+          IsSystem: false,
+          IsDefault: true,
+        },
+      ])
+    ),
     http.get('/api/kubernetes/3/namespaces/default/events', () =>
       HttpResponse.json([])
     ),
diff --git a/app/react/kubernetes/helm/HelmApplicationView/HelmApplicationView.tsx b/app/react/kubernetes/helm/HelmApplicationView/HelmApplicationView.tsx
index f063c06d4..d3c671761 100644
--- a/app/react/kubernetes/helm/HelmApplicationView/HelmApplicationView.tsx
+++ b/app/react/kubernetes/helm/HelmApplicationView/HelmApplicationView.tsx
@@ -5,6 +5,7 @@ import helm from '@/assets/ico/vendor/helm.svg?c';
 import { PageHeader } from '@/react/components/PageHeader';
 import { useEnvironmentId } from '@/react/hooks/useEnvironmentId';
 import { Authorized } from '@/react/hooks/useUser';
+import { useNamespaceAccessRedirect } from '@/react/kubernetes/namespaces/hooks/useNamespaceAccessRedirect';
 
 import { WidgetTitle, WidgetBody, Widget, Loading } from '@@/Widget';
 import { Card } from '@@/Card';
@@ -26,6 +27,7 @@ export function HelmApplicationView() {
   const queryClient = useQueryClient();
   const { params } = useCurrentStateAndParams();
   const { name, namespace, revision } = params;
+  useNamespaceAccessRedirect(namespace, { to: 'kubernetes.applications' });
   const helmHistoryQuery = useHelmHistory(environmentId, name, namespace);
   const latestRevision = helmHistoryQuery.data?.[0]?.version;
   const earlistRevision =
diff --git a/app/react/kubernetes/ingresses/CreateIngressView/CreateIngressView.tsx b/app/react/kubernetes/ingresses/CreateIngressView/CreateIngressView.tsx
index b5de9afe1..554155d04 100644
--- a/app/react/kubernetes/ingresses/CreateIngressView/CreateIngressView.tsx
+++ b/app/react/kubernetes/ingresses/CreateIngressView/CreateIngressView.tsx
@@ -9,6 +9,7 @@ import { notifyError, notifySuccess } from '@/portainer/services/notifications';
 import { useAuthorizations } from '@/react/hooks/useUser';
 import { Annotation } from '@/react/kubernetes/annotations/types';
 import { prepareAnnotations } from '@/react/kubernetes/utils';
+import { useNamespaceAccessRedirect } from '@/react/kubernetes/namespaces/hooks/useNamespaceAccessRedirect';
 
 import { Link } from '@@/Link';
 import { PageHeader } from '@@/PageHeader';
@@ -43,6 +44,7 @@ import {
 export function CreateIngressView() {
   const environmentId = useEnvironmentId();
   const { params } = useCurrentStateAndParams();
+  useNamespaceAccessRedirect(params.namespace, { to: 'kubernetes.ingresses' });
   const { authorized: isAuthorizedToAddEdit } = useAuthorizations([
     'K8sIngressesW',
   ]);
diff --git a/app/react/kubernetes/namespaces/ItemView/NamespaceView.tsx b/app/react/kubernetes/namespaces/ItemView/NamespaceView.tsx
index fae86a79a..f49ff2cf0 100644
--- a/app/react/kubernetes/namespaces/ItemView/NamespaceView.tsx
+++ b/app/react/kubernetes/namespaces/ItemView/NamespaceView.tsx
@@ -2,6 +2,7 @@ import { useCurrentStateAndParams } from '@uirouter/react';
 import { AlertTriangle, Code, Layers, History } from 'lucide-react';
 
 import { useEnvironmentId } from '@/react/hooks/useEnvironmentId';
+import { useNamespaceAccessRedirect } from '@/react/kubernetes/namespaces/hooks/useNamespaceAccessRedirect';
 
 import { PageHeader } from '@@/PageHeader';
 import { findSelectedTabIndex, Tab, WidgetTabs } from '@@/Widget/WidgetTabs';
@@ -20,6 +21,9 @@ export function NamespaceView() {
   const {
     params: { id: namespace },
   } = stateAndParams;
+  useNamespaceAccessRedirect(namespace, {
+    to: 'kubernetes.resourcePools',
+  });
 
   const environmentId = useEnvironmentId();
   const eventWarningCount = useEventWarningsCount(environmentId, namespace);
diff --git a/app/react/kubernetes/namespaces/hooks/useNamespaceAccessRedirect.ts b/app/react/kubernetes/namespaces/hooks/useNamespaceAccessRedirect.ts
new file mode 100644
index 000000000..2701abdc4
--- /dev/null
+++ b/app/react/kubernetes/namespaces/hooks/useNamespaceAccessRedirect.ts
@@ -0,0 +1,51 @@
+import { useEffect } from 'react';
+import { useCurrentStateAndParams, useRouter } from '@uirouter/react';
+
+import { useEnvironmentId } from '@/react/hooks/useEnvironmentId';
+
+import { useNamespacesQuery } from '../queries/useNamespacesQuery';
+
+type RedirectOptions = {
+  to: string;
+  params?: Record<string, unknown>;
+};
+
+/**
+ * Redirects away when the provided namespace is not in the allowed namespaces list for the current environment.
+ */
+export function useNamespaceAccessRedirect(
+  namespace?: string,
+  { to, params } = { to: 'kubernetes.dashboard', params: {} } as RedirectOptions
+) {
+  const router = useRouter();
+  const namespaceInParams = useCurrentStateAndParams().params.namespace;
+  const currentNamespace = namespace || namespaceInParams;
+  const environmentId = useEnvironmentId();
+
+  const namespacesQuery = useNamespacesQuery(environmentId);
+
+  useEffect(() => {
+    if (!currentNamespace) {
+      return;
+    }
+
+    if (namespacesQuery.isLoading || namespacesQuery.isFetching) {
+      return;
+    }
+
+    const namespaces = namespacesQuery.data ?? [];
+    const isAllowed = namespaces.some((ns) => ns.Name === currentNamespace);
+
+    if (!isAllowed) {
+      router.stateService.go(to, params);
+    }
+  }, [
+    currentNamespace,
+    to,
+    params,
+    router.stateService,
+    namespacesQuery.isLoading,
+    namespacesQuery.isFetching,
+    namespacesQuery.data,
+  ]);
+}