Family name Phikulngam (Phikulngam 
) , worldwide, is a very rare last name. The surname Phikulngam is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phikulngam | Thailand |
Suree, Suchet, Korawi, Silphakorn, Surapot, and Thanatporn