diff --git a/.gitmodules b/.gitmodules
index e3fb88835d24..91e7ff8afc39 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -134,3 +134,6 @@
 [submodule "third_party/kleidiai"]
 	path = third_party/kleidiai
 	url = https://github.com/ARM-software/kleidiai.git
+[submodule "third_party/flash-attention"]
+	path = third_party/flash-attention
+	url = https://github.com/Dao-AILab/flash-attention.git
diff --git a/third_party/flash-attention b/third_party/flash-attention
new file mode 160000
index 000000000000..6b1d059eda21
--- /dev/null
+++ b/third_party/flash-attention
@@ -0,0 +1 @@
+Subproject commit 6b1d059eda21c1bd421f3d352786fca2cab61954