Family name Sio-Kawpeng (Sio-Kawpeng 
) , in the world, is an extremely rare last name. The family name Sio-Kawpeng is habitual in South-eastern Asia, particularly Philippines, where it is an extremely rare surname. Parts of the name also exists independently as a last name Sio, and a last name Kawpeng.
| VARIANT | COUNTRY |
|---|---|
| Sio-Kawpeng | Philippines |