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Last name Singchai (สิงห์ชัย , Singchai
, สิงชัย
) , throughout the world, is quite a rare surname. The cognomen Singchai is habitual in Thailand, where it is quite a rare surname, and the United States, where it is an extremely rare surname. Likewise, Singchai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สิงชัย, สิงใจ, สิงห์ชัย | Thailand |
| Singchai | Thailand, Malaysia, United States |