diff --git a/plugins/scaffolder-backend/src/service/helpers.ts b/plugins/scaffolder-backend/src/service/helpers.ts
index 23200d6aac..13197861a8 100644
--- a/plugins/scaffolder-backend/src/service/helpers.ts
+++ b/plugins/scaffolder-backend/src/service/helpers.ts
@@ -95,11 +95,6 @@ export async function findTemplate(options: {
 }): Promise<TemplateEntityV1beta3> {
   const { entityRef, token, catalogApi } = options;
 
-  if (entityRef.namespace.toLocaleLowerCase('en-US') !== DEFAULT_NAMESPACE) {
-    throw new InputError(
-      `Invalid namespace, only '${DEFAULT_NAMESPACE}' namespace is supported`,
-    );
-  }
   if (entityRef.kind.toLocaleLowerCase('en-US') !== 'template') {
     throw new InputError(`Invalid kind, only 'Template' kind is supported`);
   }
diff --git a/plugins/scaffolder/src/components/Router.tsx b/plugins/scaffolder/src/components/Router.tsx
index 6beaa3419a..172a21234a 100644
--- a/plugins/scaffolder/src/components/Router.tsx
+++ b/plugins/scaffolder/src/components/Router.tsx
@@ -15,7 +15,7 @@
  */
 
 import React, { ComponentType } from 'react';
-import { Routes, Route, useOutlet, Navigate } from 'react-router';
+import { Routes, Route, useOutlet, Navigate, useParams } from 'react-router';
 import { Entity } from '@backstage/catalog-model';
 import { TemplateEntityV1beta3 } from '@backstage/plugin-scaffolder-common';
 import { ScaffolderPage } from './ScaffolderPage';
@@ -31,10 +31,11 @@ import {
   FIELD_EXTENSION_KEY,
   DEFAULT_SCAFFOLDER_FIELD_EXTENSIONS,
 } from '../extensions';
-import { useElementFilter } from '@backstage/core-plugin-api';
+import { useElementFilter, useRouteRef } from '@backstage/core-plugin-api';
 import {
   actionsRouteRef,
   editRouteRef,
+  legacySelectedTemplateRouteRef,
   scaffolderListTaskRouteRef,
   scaffolderTaskRouteRef,
   selectedTemplateRouteRef,
@@ -101,6 +102,12 @@ export const Router = (props: RouterProps) => {
     ),
   ];
 
+  const RedirectingComponent = () => {
+    const { templateName } = useParams();
+    const newLink = useRouteRef(selectedTemplateRouteRef);
+    return <Navigate to={newLink({ namespace: 'default', templateName })} />;
+  };
+
   return (
     <Routes>
       <Route
@@ -112,6 +119,9 @@ export const Router = (props: RouterProps) => {
           />
         }
       />
+      <Route path={legacySelectedTemplateRouteRef.path}>
+        <RedirectingComponent />
+      </Route>
       <Route
         path={selectedTemplateRouteRef.path}
         element={
diff --git a/plugins/scaffolder/src/components/TaskPage/TaskPage.tsx b/plugins/scaffolder/src/components/TaskPage/TaskPage.tsx
index 0662b0300f..7073157f25 100644
--- a/plugins/scaffolder/src/components/TaskPage/TaskPage.tsx
+++ b/plugins/scaffolder/src/components/TaskPage/TaskPage.tsx
@@ -299,12 +299,12 @@ export const TaskPage = ({ loadingText }: TaskPageProps) => {
 
     const formData = taskStream.task!.spec.parameters;
 
-    const { name } = parseEntityRef(
+    const { name, namespace } = parseEntityRef(
       taskStream.task!.spec.templateInfo?.entityRef,
     );
 
     navigate(
-      `${templateRoute({ templateName: name })}?${qs.stringify({
+      `${templateRoute({ templateName: name, namespace })}?${qs.stringify({
         formData: JSON.stringify(formData),
       })}`,
     );
diff --git a/plugins/scaffolder/src/components/TemplateCard/TemplateCard.tsx b/plugins/scaffolder/src/components/TemplateCard/TemplateCard.tsx
index 6f7e375cce..df46a119f2 100644
--- a/plugins/scaffolder/src/components/TemplateCard/TemplateCard.tsx
+++ b/plugins/scaffolder/src/components/TemplateCard/TemplateCard.tsx
@@ -13,7 +13,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import { Entity, RELATION_OWNED_BY } from '@backstage/catalog-model';
+import {
+  Entity,
+  parseEntityRef,
+  RELATION_OWNED_BY,
+  stringifyEntityRef,
+} from '@backstage/catalog-model';
 import { TemplateEntityV1beta3 } from '@backstage/plugin-scaffolder-common';
 import {
   ScmIntegrationIcon,
@@ -162,7 +167,8 @@ export const TemplateCard = ({ template, deprecated }: TemplateCardProps) => {
     : 'other';
   const theme = backstageTheme.getPageTheme({ themeId });
   const classes = useStyles({ backgroundImage: theme.backgroundImage });
-  const href = templateRoute({ templateName: templateProps.name });
+  const { name, namespace } = parseEntityRef(stringifyEntityRef(template));
+  const href = templateRoute({ templateName: name, namespace });
 
   const scmIntegrationsApi = useApi(scmIntegrationsApiRef);
   const sourceLocation = getEntitySourceLocation(template, scmIntegrationsApi);
diff --git a/plugins/scaffolder/src/components/TemplatePage/TemplatePage.tsx b/plugins/scaffolder/src/components/TemplatePage/TemplatePage.tsx
index 22f995eae4..f694688801 100644
--- a/plugins/scaffolder/src/components/TemplatePage/TemplatePage.tsx
+++ b/plugins/scaffolder/src/components/TemplatePage/TemplatePage.tsx
@@ -54,11 +54,16 @@ export const TemplatePage = ({
   const secretsContext = useContext(SecretsContext);
   const errorApi = useApi(errorApiRef);
   const scaffolderApi = useApi(scaffolderApiRef);
-  const { templateName } = useParams();
+  const { templateName, namespace } = useParams();
+  const templateRef = stringifyEntityRef({
+    name: templateName,
+    kind: 'template',
+    namespace,
+  });
   const navigate = useNavigate();
   const scaffolderTaskRoute = useRouteRef(scaffolderTaskRouteRef);
   const rootRoute = useRouteRef(rootRouteRef);
-  const { schema, loading, error } = useTemplateParameterSchema(templateName);
+  const { schema, loading, error } = useTemplateParameterSchema(templateRef);
   const [formState, setFormState] = useState<Record<string, any>>(() => {
     const query = qs.parse(window.location.search, {
       ignoreQueryPrefix: true,
@@ -78,11 +83,7 @@ export const TemplatePage = ({
 
   const handleCreate = async () => {
     const { taskId } = await scaffolderApi.scaffold({
-      templateRef: stringifyEntityRef({
-        name: templateName,
-        kind: 'template',
-        namespace: 'default',
-      }),
+      templateRef,
       values: formState,
       secrets: secretsContext?.secrets,
     });
diff --git a/plugins/scaffolder/src/next/Router/Router.test.tsx b/plugins/scaffolder/src/next/Router/Router.test.tsx
index 5094c786e0..1aaca1a94b 100644
--- a/plugins/scaffolder/src/next/Router/Router.test.tsx
+++ b/plugins/scaffolder/src/next/Router/Router.test.tsx
@@ -47,7 +47,9 @@ describe('Router', () => {
 
   describe('/templates/:templateName', () => {
     it('should render the TemplateWizard page', async () => {
-      await renderInTestApp(<Router />, { routeEntries: ['/templates/foo'] });
+      await renderInTestApp(<Router />, {
+        routeEntries: ['/templates/default/foo'],
+      });
 
       expect(TemplateWizardPage).toHaveBeenCalled();
     });
@@ -67,7 +69,7 @@ describe('Router', () => {
             <CustomFieldExtension />
           </ScaffolderFieldExtensions>
         </Router>,
-        { routeEntries: ['/templates/foo'] },
+        { routeEntries: ['/templates/default/foo'] },
       );
 
       const mock = TemplateWizardPage as jest.Mock;
diff --git a/plugins/scaffolder/src/next/TemplateListPage/TemplateCard/TemplateCard.test.tsx b/plugins/scaffolder/src/next/TemplateListPage/TemplateCard/TemplateCard.test.tsx
index 45f4dc6317..44e3a0bbbf 100644
--- a/plugins/scaffolder/src/next/TemplateListPage/TemplateCard/TemplateCard.test.tsx
+++ b/plugins/scaffolder/src/next/TemplateListPage/TemplateCard/TemplateCard.test.tsx
@@ -233,7 +233,7 @@ describe('TemplateCard', () => {
     expect(getByRole('button', { name: 'Choose' })).toBeInTheDocument();
     expect(getByRole('button', { name: 'Choose' })).toHaveAttribute(
       'href',
-      '/templates/bob',
+      '/templates/default/bob',
     );
   });
 });
diff --git a/plugins/scaffolder/src/next/TemplateListPage/TemplateCard/TemplateCard.tsx b/plugins/scaffolder/src/next/TemplateListPage/TemplateCard/TemplateCard.tsx
index 0e67ecd82a..874c20a9ac 100644
--- a/plugins/scaffolder/src/next/TemplateListPage/TemplateCard/TemplateCard.tsx
+++ b/plugins/scaffolder/src/next/TemplateListPage/TemplateCard/TemplateCard.tsx
@@ -26,7 +26,11 @@ import {
 } from '@material-ui/core';
 import { CardHeader } from './CardHeader';
 import { MarkdownContent, UserIcon, Button } from '@backstage/core-components';
-import { RELATION_OWNED_BY } from '@backstage/catalog-model';
+import {
+  parseEntityRef,
+  RELATION_OWNED_BY,
+  stringifyEntityRef,
+} from '@backstage/catalog-model';
 import {
   EntityRefLinks,
   getEntityRelations,
@@ -91,7 +95,8 @@ export const TemplateCard = (props: TemplateCardProps) => {
   const styles = useStyles();
   const ownedByRelations = getEntityRelations(template, RELATION_OWNED_BY);
   const templateRoute = useRouteRef(selectedTemplateRouteRef);
-  const href = templateRoute({ templateName: template.metadata.name });
+  const { name, namespace } = parseEntityRef(stringifyEntityRef(template));
+  const href = templateRoute({ templateName: name, namespace: namespace });
 
   return (
     <Card>
diff --git a/plugins/scaffolder/src/routes.ts b/plugins/scaffolder/src/routes.ts
index be0d69135a..dbc54bb22c 100644
--- a/plugins/scaffolder/src/routes.ts
+++ b/plugins/scaffolder/src/routes.ts
@@ -28,10 +28,16 @@ export const rootRouteRef = createRouteRef({
   id: 'scaffolder',
 });
 
+export const legacySelectedTemplateRouteRef = createSubRouteRef({
+  id: 'scaffolder/legacy/selected-template',
+  parent: rootRouteRef,
+  path: '/templates/:templateName',
+});
+
 export const selectedTemplateRouteRef = createSubRouteRef({
   id: 'scaffolder/selected-template',
   parent: rootRouteRef,
-  path: '/templates/:templateName',
+  path: '/templates/:namespace/:templateName',
 });
 
 export const scaffolderTaskRouteRef = createSubRouteRef({