Last name ทับศิริ (ทับศิริ 
, Tubsiri , Tupsiri ) , throughout the world, is a rare family name. The last name ทับศิริ is habitual in Thailand, where it is a rare surname, and China, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tubsiri, ทับศิริ, Tupsiri | Thailand |
| Thapsiri | China, Thailand |