diff --git a/proto/mls/message_contents/content_types/delete_message.proto b/proto/mls/message_contents/content_types/delete_message.proto
new file mode 100644
index 00000000..01dd9cc6
--- /dev/null
+++ b/proto/mls/message_contents/content_types/delete_message.proto
@@ -0,0 +1,22 @@
+// delete_message.proto
+// This file defines the DeleteMessage message type and is associated with the following ContentTypeId:
+//
+// ContentTypeId {
+//     authority_id: "xmtp.org",
+//     type_id:      "deleteMessage",
+//     version_major: 1,
+//     version_minor: 0,
+// }
+//
+syntax = "proto3";
+
+package xmtp.mls.message_contents.content_types;
+
+option go_package = "github.com/xmtp/proto/v3/go/mls/message_contents/content_types";
+option java_package = "org.xmtp.proto.mls.message_contents.content_types";
+
+// DeleteMessage message type
+message DeleteMessage {
+  // ID of the message to delete
+  string message_id = 1;
+}