diff --git a/.changeset/fix-entity-tab-group-ordering.md b/.changeset/fix-entity-tab-group-ordering.md
new file mode 100644
index 0000000000..6fab3f77af
--- /dev/null
+++ b/.changeset/fix-entity-tab-group-ordering.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog': patch
+---
+
+Fixed entity page tab groups not respecting the ordering from the `groups` configuration.
diff --git a/.patches/pr-33004.txt b/.patches/pr-33004.txt
new file mode 100644
index 0000000000..5594a76e6b
--- /dev/null
+++ b/.patches/pr-33004.txt
@@ -0,0 +1 @@
+Fixes entity page tab groups not respecting the ordering from the groups configuration.
\ No newline at end of file
diff --git a/plugins/catalog/src/alpha/components/EntityTabs/EntityTabs.test.tsx b/plugins/catalog/src/alpha/components/EntityTabs/EntityTabs.test.tsx
index 3bca08288f..a85d795cd8 100644
--- a/plugins/catalog/src/alpha/components/EntityTabs/EntityTabs.test.tsx
+++ b/plugins/catalog/src/alpha/components/EntityTabs/EntityTabs.test.tsx
@@ -16,8 +16,10 @@
 
 import { screen } from '@testing-library/react';
 import { useSelectedSubRoute } from './EntityTabs';
+import { EntityTabsList } from './EntityTabsList';
 import { MemoryRouter, Route, Routes } from 'react-router-dom';
 import { render } from '@testing-library/react';
+import { renderInTestApp } from '@backstage/frontend-test-utils';
 
 function TestSubRouteHook(props: {
   subRoutes: Array<{
@@ -37,6 +39,83 @@ function TestSubRouteHook(props: {
   );
 }
 
+describe('EntityTabsList', () => {
+  it('should render groups in the order defined by groupDefinitions', () => {
+    const tabs = [
+      { id: '/cicd', label: 'CI/CD', path: 'cicd', group: 'cicd' },
+      {
+        id: '/overview',
+        label: 'Overview',
+        path: 'overview',
+        group: 'overview',
+      },
+      {
+        id: '/techdocs',
+        label: 'TechDocs',
+        path: 'techdocs',
+        group: 'techdocs',
+      },
+    ];
+
+    const groupDefinitions = {
+      overview: { title: 'Overview' },
+      techdocs: { title: 'TechDocs' },
+      cicd: { title: 'CI/CD' },
+    };
+
+    renderInTestApp(
+      <EntityTabsList
+        tabs={tabs}
+        groupDefinitions={groupDefinitions}
+        selectedIndex={0}
+      />,
+    );
+
+    const tabElements = screen.getAllByRole('tab');
+    expect(tabElements).toHaveLength(3);
+    expect(tabElements[0]).toHaveTextContent('Overview');
+    expect(tabElements[1]).toHaveTextContent('TechDocs');
+    expect(tabElements[2]).toHaveTextContent('CI/CD');
+  });
+
+  it('should place ungrouped tabs after defined groups', () => {
+    const tabs = [
+      { id: '/standalone', label: 'Standalone', path: 'standalone' },
+      {
+        id: '/overview',
+        label: 'Overview',
+        path: 'overview',
+        group: 'overview',
+      },
+      {
+        id: '/techdocs',
+        label: 'TechDocs',
+        path: 'techdocs',
+        group: 'techdocs',
+      },
+    ];
+
+    const groupDefinitions = {
+      overview: { title: 'Overview' },
+      techdocs: { title: 'TechDocs' },
+    };
+
+    renderInTestApp(
+      <EntityTabsList
+        tabs={tabs}
+        groupDefinitions={groupDefinitions}
+        selectedIndex={0}
+      />,
+    );
+
+    const tabElements = screen.getAllByRole('tab');
+    expect(tabElements).toHaveLength(3);
+    expect(tabElements[0]).toHaveTextContent('Overview');
+    expect(tabElements[1]).toHaveTextContent('TechDocs');
+    expect(tabElements[2]).toHaveTextContent('Standalone');
+  });
+});
+
 describe('EntityTabs', () => {
   const subRoutes = [
     {
diff --git a/plugins/catalog/src/alpha/components/EntityTabs/EntityTabsList.tsx b/plugins/catalog/src/alpha/components/EntityTabs/EntityTabsList.tsx
index d77cc5e444..9267e083f5 100644
--- a/plugins/catalog/src/alpha/components/EntityTabs/EntityTabsList.tsx
+++ b/plugins/catalog/src/alpha/components/EntityTabs/EntityTabsList.tsx
@@ -88,20 +88,34 @@ export function EntityTabsList(props: EntityTabsListProps) {
 
   const { tabs: items, selectedIndex = 0, showIcons, groupDefinitions } = props;
 
-  const groups = useMemo(
-    () =>
-      items.reduce((result, tab) => {
-        const group = tab.group ? groupDefinitions[tab.group] : undefined;
-        const groupOrId = group && tab.group ? tab.group : tab.id;
-        result[groupOrId] = result[groupOrId] ?? {
-          group,
-          items: [],
-        };
-        result[groupOrId].items.push(tab);
-        return result;
-      }, {} as Record<string, TabGroup>),
-    [items, groupDefinitions],
-  );
+  const groups = useMemo(() => {
+    const byKey = items.reduce((result, tab) => {
+      const group = tab.group ? groupDefinitions[tab.group] : undefined;
+      const groupOrId = group && tab.group ? tab.group : tab.id;
+      result[groupOrId] = result[groupOrId] ?? {
+        group,
+        items: [],
+      };
+      result[groupOrId].items.push(tab);
+      return result;
+    }, {} as Record<string, TabGroup>);
+
+    const groupOrder = Object.keys(groupDefinitions);
+    return Object.entries(byKey).sort(([a], [b]) => {
+      const ai = groupOrder.indexOf(a);
+      const bi = groupOrder.indexOf(b);
+      if (ai !== -1 && bi !== -1) {
+        return ai - bi;
+      }
+      if (ai !== -1) {
+        return -1;
+      }
+      if (bi !== -1) {
+        return 1;
+      }
+      return 0;
+    });
+  }, [items, groupDefinitions]);
 
   const selectedItem = items[selectedIndex];
   return (
@@ -115,7 +129,7 @@ export function EntityTabsList(props: EntityTabsListProps) {
         aria-label={t('entityTabs.tabsAriaLabel')}
         value={selectedItem?.group ?? selectedItem?.id}
       >
-        {Object.entries(groups).map(([id, tabGroup]) => (
+        {groups.map(([id, tabGroup]) => (
           <EntityTabsGroup
             data-testid={`header-tab-${id}`}
             className={styles.defaultTab}