Surname Sutchai (สุดใจ 
, สุดชาย , Sutchai 
) , in the entire world, is quite a common cognomen. The cognomen Sutchai is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname, and Malaysia, where it is a very rare surname. More prevalently, Sutchai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุดชาย, สุดใจ | Thailand |
| Sutchai | United States, Malaysia, Philippines, Thailand |