diff --git a/datafusion/core/src/execution/context/mod.rs b/datafusion/core/src/execution/context/mod.rs
index d84ef0c898313..7143d1aaab092 100644
--- a/datafusion/core/src/execution/context/mod.rs
+++ b/datafusion/core/src/execution/context/mod.rs
@@ -17,6 +17,7 @@
 
 //! [`SessionContext`] API for registering data sources and executing queries
 
+use std::any::Any;
 use std::collections::HashSet;
 use std::fmt::Debug;
 use std::sync::{Arc, Weak};
@@ -2073,7 +2074,7 @@ impl From<SessionContext> for SessionStateBuilder {
 
 /// A planner used to add extensions to DataFusion logical and physical plans.
 #[async_trait]
-pub trait QueryPlanner: Debug {
+pub trait QueryPlanner: Any + Debug {
     /// Given a [`LogicalPlan`], create an [`ExecutionPlan`] suitable for execution
     async fn create_physical_plan(
         &self,
diff --git a/docs/source/library-user-guide/upgrading/54.0.0.md b/docs/source/library-user-guide/upgrading/54.0.0.md
index 46b768e8340eb..e7be09f957dee 100644
--- a/docs/source/library-user-guide/upgrading/54.0.0.md
+++ b/docs/source/library-user-guide/upgrading/54.0.0.md
@@ -649,3 +649,14 @@ move the borrow behind an interior-mutability primitive such as `Arc<Mutex<_>>`
 or `Arc<OnceLock<_>>`.
 
 See [PR #21803](https://github.com/apache/datafusion/pull/21803) for details.
+
+### `QueryPlanner` adds `Any` as a supertrait
+
+To enable downcasting of `dyn QueryPlanner` to concrete query planner types (via
+`is::<T>()` / `downcast_ref::<T>()`), the `QueryPlanner` trait now has `Any`
+as a supertrait:
+
+```diff
+- pub trait QueryPlanner: Debug
++ pub trait QueryPlanner: Any + Debug
+```