Family name Skulkoo (Skulkoo 
) , all over the world, is a very rare surname. The cognomen Skulkoo is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Skulkoo | Thailand |
Ladda, Somjetana, Siriparn, Siriphan, and Phanthawat