Surname กรินชัย (Grinchai 
, กรินชัย , Krinchai 
) , globally, is a rare cognomen. The cognomen กรินชัย is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, กรินชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| กรินชัย, Grinchai | Thailand |
| Krinchai | United States, Thailand |
| สิริ กรินชัย TH (b. 1917) |
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| อรณิชา กรินชัย TH (b. 1992) |
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