Family name Pacuan-Cuan (Pacuan-Cuan 
) , in all the world, is a very rare last name. The cognomen Pacuan-Cuan is habitual in South-eastern Asia, particularly Philippines, where it is a very rare surname. Parts of the name also exists independently as a last name Pacuan, and a last name Cuan.
| VARIANT | COUNTRY |
|---|---|
| Pacuan-Cuan | Philippines |