Last name สมเสมอ (สมเสมอ 
) , worldwide, is a very rare surname. The last name สมเสมอ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, สมเสมอ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สมเสมอ | Thailand |