Family name สมานกุล (Samankul 
, สมานกุล , Samarnkun ) , throughout the world, is a rare surname. The surname สมานกุล is characteristic of Thailand, where it is a rare surname, Georgia, and the United States, where it is an extremely rare surname. Very seldom, สมานกุล is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Samankul | United States, Georgia, Thailand |
| สมานกุล, Samarnkul | Thailand |
| Samarnkun | United States, Thailand |