Surname Werasak (Werasak 
) , globally, is a very rare cognomen. The family name Werasak is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname, and Cambodia. Much more prevalently, Werasak is the forename as well as the last name.
Junno, Laohakul, Jaiarere, Nuangnum, Intasian, Wongthai, Muangkaew, Sitthiwong, Chonrakan, Choonhajak, Damduangrom, Lalitjaroon, Luangsumbud, Fungrattanatrai, Issarasak, Werathammo, Srikunchai, Wiwatchaikul, Yongsripanithan, Sriwiriyaphaiboon, Aroonpraphan, Prasartkhetkarn, Rittiyan, Kongpeth, Bharyaguntra, Bunluelues, Seemud, Runmee, Laokam, Leekul, Wongsa, Yokrat, Midwang, Surareungchai, Sunhirun, Sukawong, Luangsombud, Chaowal, Pramkuakul, Jaiaree, Thitibenjapol, Tongtip, Fangnok, Ungkhajornkul, Mahitthi, Sapsuebsakul, Amornrit, Boonmaha, Buasuwan, and Chutinanthakun