diff --git a/rest-api-spec/src/yamlRestCompatTest/resources/rest-api-spec/test/v7compat/nodes.hot_threads/10_basic_compat.yml b/rest-api-spec/src/yamlRestCompatTest/resources/rest-api-spec/test/v7compat/nodes.hot_threads/10_basic_compat.yml
new file mode 100644
index 0000000000000..a78130342519b
--- /dev/null
+++ b/rest-api-spec/src/yamlRestCompatTest/resources/rest-api-spec/test/v7compat/nodes.hot_threads/10_basic_compat.yml
@@ -0,0 +1,21 @@
+---
+setup:
+  - skip:
+      version: "9.0.0 - "
+      reason: "compatible from 8.x to 7.x"
+      features:
+        - "headers"
+        - "allowed_warnings_regex"
+
+---
+"Get hot threads":
+
+  - do:
+      headers:
+        Content-Type: "application/vnd.elasticsearch+json;compatible-with=7"
+        Accept: "application/vnd.elasticsearch+json;compatible-with=7"
+      nodes.hot_threads: {}
+      allowed_warnings_regex:
+        - ".*hot_?threads.* is a deprecated endpoint.*"
+  - match:
+      $body: /:::/
diff --git a/server/src/main/java/org/elasticsearch/rest/action/admin/cluster/RestNodesHotThreadsAction.java b/server/src/main/java/org/elasticsearch/rest/action/admin/cluster/RestNodesHotThreadsAction.java
index 6f2376e52e901..f27b7e2f23e44 100644
--- a/server/src/main/java/org/elasticsearch/rest/action/admin/cluster/RestNodesHotThreadsAction.java
+++ b/server/src/main/java/org/elasticsearch/rest/action/admin/cluster/RestNodesHotThreadsAction.java
@@ -13,6 +13,7 @@
 import org.elasticsearch.action.admin.cluster.node.hotthreads.NodesHotThreadsResponse;
 import org.elasticsearch.client.node.NodeClient;
 import org.elasticsearch.common.Strings;
+import org.elasticsearch.core.RestApiVersion;
 import org.elasticsearch.core.TimeValue;
 import org.elasticsearch.rest.BaseRestHandler;
 import org.elasticsearch.rest.BytesRestResponse;
@@ -23,16 +24,59 @@
 
 import java.io.IOException;
 import java.util.List;
+import java.util.Locale;
 
 import static org.elasticsearch.rest.RestRequest.Method.GET;
 
 public class RestNodesHotThreadsAction extends BaseRestHandler {
 
+    private static final String formatDeprecatedMessageWithoutNodeID = "[%s] is a deprecated endpoint. " +
+        "Please use [/_nodes/hot_threads] instead.";
+    private static final String formatDeprecatedMessageWithNodeID = "[%s] is a deprecated endpoint. " +
+        "Please use [/_nodes/{nodeId}/hot_threads] instead.";
+    private static final String DEPRECATED_MESSAGE_CLUSTER_NODES_HOT_THREADS = String.format(Locale.ROOT,
+        formatDeprecatedMessageWithoutNodeID,
+        "/_cluster/nodes/hot_threads"
+    );
+    private static final String DEPRECATED_MESSAGE_CLUSTER_NODES_NODEID_HOT_THREADS = String.format(Locale.ROOT,
+        formatDeprecatedMessageWithNodeID,
+        "/_cluster/nodes/{nodeId}/hot_threads"
+    );
+    private static final String DEPRECATED_MESSAGE_CLUSTER_NODES_HOTTHREADS = String.format(Locale.ROOT,
+        formatDeprecatedMessageWithoutNodeID,
+        "/_cluster/nodes/hotthreads"
+    );
+    private static final String DEPRECATED_MESSAGE_CLUSTER_NODES_NODEID_HOTTHREADS = String.format(Locale.ROOT,
+        formatDeprecatedMessageWithNodeID,
+        "/_cluster/nodes/{nodeId}/hotthreads"
+    );
+    private static final String DEPRECATED_MESSAGE_NODES_HOTTHREADS = String.format(Locale.ROOT,
+        formatDeprecatedMessageWithoutNodeID,
+        "/_nodes/hotthreads"
+    );
+    private static final String DEPRECATED_MESSAGE_NODES_NODEID_HOTTHREADS = String.format(Locale.ROOT,
+        formatDeprecatedMessageWithNodeID,
+        "/_nodes/{nodeId}/hotthreads"
+    );
+
     @Override
     public List<Route> routes() {
         return List.of(
             new Route(GET, "/_nodes/hot_threads"),
-            new Route(GET, "/_nodes/{nodeId}/hot_threads")
+            new Route(GET, "/_nodes/{nodeId}/hot_threads"),
+
+            Route.builder(GET, "/_cluster/nodes/hot_threads")
+                .deprecated(DEPRECATED_MESSAGE_CLUSTER_NODES_HOT_THREADS, RestApiVersion.V_7).build(),
+            Route.builder(GET, "/_cluster/nodes/{nodeId}/hot_threads")
+                .deprecated(DEPRECATED_MESSAGE_CLUSTER_NODES_NODEID_HOT_THREADS, RestApiVersion.V_7).build(),
+            Route.builder(GET, "/_cluster/nodes/hotthreads")
+                .deprecated(DEPRECATED_MESSAGE_CLUSTER_NODES_HOTTHREADS, RestApiVersion.V_7).build(),
+            Route.builder(GET, "/_cluster/nodes/{nodeId}/hotthreads")
+                .deprecated(DEPRECATED_MESSAGE_CLUSTER_NODES_NODEID_HOTTHREADS, RestApiVersion.V_7).build(),
+            Route.builder(GET, "/_nodes/hotthreads")
+                .deprecated(DEPRECATED_MESSAGE_NODES_HOTTHREADS, RestApiVersion.V_7).build(),
+            Route.builder(GET, "/_nodes/{nodeId}/hotthreads")
+                .deprecated(DEPRECATED_MESSAGE_NODES_NODEID_HOTTHREADS, RestApiVersion.V_7).build()
         );
     }