Surname Seksak (เสกศักดิ์ 
, เศกศักดิ์ , Seksak 
) , throughout the world, is a very rare cognomen. The last name Seksak is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. Predominantly, Seksak is the forename as well as the last name.
Marak, Pornpeng, Porathep, Piriyetyanggoon, Thongkum, Nongtrud, Sangsuwan, Sukphachanart, Suesatsanit, Chouichom, Kanwinphruet, Janyaprapanon, Weeravatakarn, Singhaphan, Chaiphomma, Chaiphormma, Chaiphromma, Termwattanapong, Narongsorn, Chaimontree, Bunjaroensinchai, Luangmaneerat, Kiatisenakul, Khamsopa, Ketnarai, Kerdkanno, Suisut, Korsem, Khamyo, Jinama, Naksit, Nukmai, Saikhao, Chimmud, Choplod, Konghom, Chantharatreerat, Penthai, Pinkeaw, Jarawan, Junngean, Thomkum, Waeomani, Yatasaeng, Sareebut, Srisamor, Asavavisithchai, Chaikaew, Pongkan, and Rattanaburee