Surname Senkrajai (Senkrajai 
) , worldwide, is a very rare family name. The last name Senkrajai is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Senkrajai | Thailand |
Prapai, Poolsri, Napakul, Khambong, and Prapawadee