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In all the world, Sithisak (สิทธิศักดิ์ , Sithisak
) is a common primarily boy's, but very infrequently feminine first name. The given name Sithisak is characteristic of South-eastern Asia, particularly Thailand, where it is quite a common predominantly boy's, but very infrequently girly name. Very seldom, Sithisak is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สิทธิศักดิ์ | Thailand |
| Sithisak | Laos, Thailand, France, United States, Cambodia |
Mee, Chueamuangpan, Chanthalavong, Thammaluckana, Tangchaleun, Sombutyanuchit, Tipyaratna, Tanchaleun, Laokamnerd, Srithamavattana, Viboontuntikul, Noomnarm, Jirawuttiwongchai, Putrasreni, Chumpati, Chakkaew, Songsean, Sutsakhan, Vongxay, Koulbout, Chaijit, Seenonyang, Davuth, Sem, Sam, Karakade, and Chueamueangpan