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In the world, Thonghai (Thonghai
) is an extremely rare masculine first name. More frequently, Thonghai is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Thonghai | China, Philippines, Thailand |
Suwit, Wasan, Sasipa, Piyada, Vanida, Somchai, Banjong, Nuainat, Kawisara, Tinnakorn, Yuthaphon, Kornkittidech, Kornkrittidech, and Rapheephan