diff --git a/.changeset/facets-predicate-backend.md b/.changeset/facets-predicate-backend.md
new file mode 100644
index 0000000000..9ecdef11b6
--- /dev/null
+++ b/.changeset/facets-predicate-backend.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend': minor
+---
+
+Added support for predicate-based filtering on the `/entity-facets` endpoint via a new `POST` method. Supports `$all`, `$any`, `$not`, `$exists`, `$in`, `$contains`, and `$hasPrefix` operators.
diff --git a/.changeset/facets-predicate-client.md b/.changeset/facets-predicate-client.md
new file mode 100644
index 0000000000..5493d7c82a
--- /dev/null
+++ b/.changeset/facets-predicate-client.md
@@ -0,0 +1,5 @@
+---
+'@backstage/catalog-client': minor
+---
+
+Added support for the `query` field in `getEntityFacets` requests, enabling predicate-based filtering with `$all`, `$any`, `$not`, `$exists`, `$in`, `$contains`, and `$hasPrefix` operators.
diff --git a/packages/catalog-client/report.api.md b/packages/catalog-client/report.api.md
index 0d71e6bc59..8bfebe6ab1 100644
--- a/packages/catalog-client/report.api.md
+++ b/packages/catalog-client/report.api.md
@@ -280,6 +280,7 @@ export interface GetEntityAncestorsResponse {
 export interface GetEntityFacetsRequest {
   facets: string[];
   filter?: EntityFilterQuery;
+  query?: FilterPredicate;
 }
 
 // @public