Throughout the world, Sutthisak (Sutthisak 
) is a very rare boy's forename. The forename Sutthisak is characteristic of South-eastern Asia, particularly Thailand, where it is a rare boy's name. Very seldom, Sutthisak is the last name as well as the forename.
Karo, Prompoon, Waesohoh, Wongvathana, Sukhamsri, Sukkharom, Sukbunpant, Kerdpholcharoenying, Phuthararak, Thongkaew, Thongniam, Nonkhamwong, Iamdechasak, Siriyosthumrong, Sitthisarn, Chakhamrod, Chayutsahakij, Thawachalee, Nammongkol, Sutthiprapa, Pongprasert, Thongkrajang, Keawtong, Boonkanha, Chiwchan, Saichuea, Monsak, Suksai, Sutthi, Prasan, Prapduang, Tepsak, Ninrod, Fugloueng, Yodmek, Yotmek, Wongsriwattanakul, Manodam, Srikham, Chaidet, Chumnum, Phiraksa, Phetkul, Tonphuban, Ounbutra, Witoonanan, Wornmuean, Sangngam, Sueanin, and Phongthanapanich