Surname Kokatham (Kokatham 
) , all over the world, is an extremely rare last name. The cognomen Kokatham is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kokatham | Thailand |
Suthian, Piyapoom, Janyawan, and Chayangkoon