Family name Malu-Ay (Malu-Ay 
) , globally, is a very rare last name. The surname Malu-Ay is habitual in Philippines, where it is a very rare surname, and Canada, where it is an extremely rare surname. Parts of the name also exists independently as a first name Malu, and a last name Ay.
| VARIANT | COUNTRY |
|---|---|
| Malu-Ay | Canada, Philippines |