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Family name Kumsai (Kumsai
, Кумсай
) , across the world, is a rare cognomen. The cognomen Kumsai is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. More prevalently, Kumsai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kumsai | India, Thailand, United States |
| Кумсай | Russia, Kazakhstan |