diff --git a/.changeset/sixty-sheep-drive.md b/.changeset/sixty-sheep-drive.md
new file mode 100644
index 0000000000..2e947b30f9
--- /dev/null
+++ b/.changeset/sixty-sheep-drive.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend': patch
+---
+
+Fixed bug when searching an entity by `spec.profile.displayName` in the catalog on the frontend. Text filter fields were not applied correctly to the database query resulting in empty results.
diff --git a/plugins/catalog-backend/src/service/DefaultEntitiesCatalog.test.ts b/plugins/catalog-backend/src/service/DefaultEntitiesCatalog.test.ts
index d2ac0871a9..91406a9b08 100644
--- a/plugins/catalog-backend/src/service/DefaultEntitiesCatalog.test.ts
+++ b/plugins/catalog-backend/src/service/DefaultEntitiesCatalog.test.ts
@@ -1183,7 +1183,6 @@ describe('DefaultEntitiesCatalog', () => {
         const request: QueryEntitiesInitialRequest = {
           filter,
           limit: 100,
-
           orderFields: [{ field: 'metadata.name', order: 'asc' }],
           fullTextFilter: { term: 'cAt ' },
           credentials: mockCredentials.none(),
@@ -1200,6 +1199,60 @@ describe('DefaultEntitiesCatalog', () => {
       },
     );
 
+    it.each(databases.eachSupportedId())(
+      'should filter the results when query is provided with fullTextFilter for camelCase fields, %p',
+      async databaseId => {
+        await createDatabase(databaseId);
+
+        const entities: Entity[] = [
+          {
+            apiVersion: 'a',
+            kind: 'k',
+            metadata: {
+              name: 'camelCase',
+            },
+            spec: {
+              shouldSearchCamelCase: 'searched',
+            },
+          },
+        ];
+
+        const notFoundEntities: Entity[] = [
+          {
+            apiVersion: 'a',
+            kind: 'k',
+            metadata: { name: 'something' },
+            spec: {},
+          },
+        ];
+
+        await Promise.all(
+          entities.concat(notFoundEntities).map(e => addEntityToSearch(e)),
+        );
+
+        const catalog = new DefaultEntitiesCatalog({
+          database: knex,
+          logger: mockServices.logger.mock(),
+          stitcher,
+        });
+
+        const request: QueryEntitiesInitialRequest = {
+          limit: 100,
+          orderFields: [{ field: 'metadata.name', order: 'asc' }],
+          fullTextFilter: {
+            term: 'sear',
+            fields: ['spec.shouldSearchCamelCase'],
+          },
+          credentials: mockCredentials.none(),
+        };
+        const response = await catalog.queryEntities(request);
+        expect(response.items).toEqual(entities);
+        expect(response.pageInfo.nextCursor).toBeUndefined();
+        expect(response.pageInfo.prevCursor).toBeUndefined();
+        expect(response.totalItems).toBe(1);
+      },
+    );
+
     it.each(databases.eachSupportedId())(
       'should filter the text results when sortOrder is not provided, %p',
       async databaseId => {
diff --git a/plugins/catalog-backend/src/service/DefaultEntitiesCatalog.ts b/plugins/catalog-backend/src/service/DefaultEntitiesCatalog.ts
index d1cabbf575..e4b4fb001d 100644
--- a/plugins/catalog-backend/src/service/DefaultEntitiesCatalog.ts
+++ b/plugins/catalog-backend/src/service/DefaultEntitiesCatalog.ts
@@ -411,7 +411,11 @@ export class DefaultEntitiesCatalog implements EntitiesCatalog {
       } else {
         const matchQuery = db<DbSearchRow>('search')
           .select('search.entity_id')
-          .whereIn('key', textFilterFields)
+          // textFilterFields must be lowercased to match searchable keys in database, i.e. spec.profile.displayName -> spec.profile.displayname
+          .whereIn(
+            'key',
+            textFilterFields.map(field => field.toLocaleLowerCase('en-US')),
+          )
           .andWhere(function keyFilter() {
             this.andWhereRaw(
               'value like ?',