diff --git a/cpp/ql/lib/ext/allocation/Std.allocation.model.yml b/cpp/ql/lib/ext/allocation/Std.allocation.model.yml
index 16b3d5bcebad..227cc4176c0d 100644
--- a/cpp/ql/lib/ext/allocation/Std.allocation.model.yml
+++ b/cpp/ql/lib/ext/allocation/Std.allocation.model.yml
@@ -12,4 +12,7 @@ extensions:
       - ["", "", False, "_malloca", "0", "", "", False]
       - ["", "", False, "calloc", "1", "0", "", True]
       - ["std", "", False, "calloc", "1", "0", "", True]
-      - ["bsl", "", False, "calloc", "1", "0", "", True]
\ No newline at end of file
+      - ["bsl", "", False, "calloc", "1", "0", "", True]
+      - ["", "", False, "aligned_alloc", "1", "", "", True]
+      - ["std", "", False, "aligned_alloc", "1", "", "", True]
+      - ["bsl", "", False, "aligned_alloc", "1", "", "", True]
diff --git a/cpp/ql/src/change-notes/2026-04-16-add-model-for-aligned-alloc.md b/cpp/ql/src/change-notes/2026-04-16-add-model-for-aligned-alloc.md
new file mode 100644
index 000000000000..af97cee7f9e4
--- /dev/null
+++ b/cpp/ql/src/change-notes/2026-04-16-add-model-for-aligned-alloc.md
@@ -0,0 +1,4 @@
+---
+category: minorAnalysis
+---
+* Added `AllocationFunction` models for `aligned_alloc`, `std::aligned_alloc`, and `bsl::aligned_alloc`.