diff --git a/.changeset/thin-donuts-join.md b/.changeset/thin-donuts-join.md
new file mode 100644
index 0000000000..84705711d2
--- /dev/null
+++ b/.changeset/thin-donuts-join.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog': patch
+---
+
+Fixed Entity kind pluralisation in the `CatalogKindHeader` component.
diff --git a/plugins/catalog/package.json b/plugins/catalog/package.json
index 1528737aac..244aab8626 100644
--- a/plugins/catalog/package.json
+++ b/plugins/catalog/package.json
@@ -49,6 +49,7 @@
     "@material-ui/lab": "4.0.0-alpha.57",
     "history": "^5.0.0",
     "lodash": "^4.17.21",
+    "pluralize": "^8.0.0",
     "react-helmet": "6.1.0",
     "react-use": "^17.2.4",
     "zen-observable": "^0.9.0"
diff --git a/plugins/catalog/src/components/CatalogKindHeader/CatalogKindHeader.test.tsx b/plugins/catalog/src/components/CatalogKindHeader/CatalogKindHeader.test.tsx
index 9f68252ca7..f511f58c58 100644
--- a/plugins/catalog/src/components/CatalogKindHeader/CatalogKindHeader.test.tsx
+++ b/plugins/catalog/src/components/CatalogKindHeader/CatalogKindHeader.test.tsx
@@ -31,6 +31,7 @@ import {
 } from '@backstage/test-utils';
 import { CatalogKindHeader } from './CatalogKindHeader';
 import { errorApiRef } from '@backstage/core-plugin-api';
+import pluralize from 'pluralize';
 
 const entities: Entity[] = [
   {
@@ -96,7 +97,7 @@ describe('<CatalogKindHeader />', () => {
 
     entities.map(entity => {
       expect(
-        screen.getByRole('option', { name: `${entity.kind}s` }),
+        screen.getByRole('option', { name: `${pluralize(entity.kind)}` }),
       ).toBeInTheDocument();
     });
   });
diff --git a/plugins/catalog/src/components/CatalogKindHeader/CatalogKindHeader.tsx b/plugins/catalog/src/components/CatalogKindHeader/CatalogKindHeader.tsx
index b0aaeae658..bb9e98d9c3 100644
--- a/plugins/catalog/src/components/CatalogKindHeader/CatalogKindHeader.tsx
+++ b/plugins/catalog/src/components/CatalogKindHeader/CatalogKindHeader.tsx
@@ -31,6 +31,7 @@ import {
 } from '@backstage/plugin-catalog-react';
 import useAsync from 'react-use/lib/useAsync';
 import { useApi } from '@backstage/core-plugin-api';
+import pluralize from 'pluralize';
 
 const useStyles = makeStyles((theme: Theme) =>
   createStyles({
@@ -132,7 +133,7 @@ export function CatalogKindHeader(props: CatalogKindHeaderProps) {
     >
       {Object.keys(options).map(kind => (
         <MenuItem value={kind} key={kind}>
-          {`${options[kind]}s`}
+          {`${pluralize(options[kind])}`}
         </MenuItem>
       ))}
     </Select>
diff --git a/yarn.lock b/yarn.lock
index be413cbe94..12417af790 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4750,6 +4750,7 @@ __metadata:
     cross-fetch: ^3.1.5
     history: ^5.0.0
     lodash: ^4.17.21
+    pluralize: ^8.0.0
     react-helmet: 6.1.0
     react-use: ^17.2.4
     zen-observable: ^0.9.0