Cognomen Weerasit (วีระสิทธิ์ 
, Weerasit ) , in the world, is a very rare family name. The family name Weerasit is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. More frequently, Weerasit is the forename as well as the last name.
Sasan, Klinsoonthorn, Traithong, Laotheerasiri, Duangkaew, Phatsanit, Kornchaiya, Chotipong, Sittiprom, Wannasuk, Nualkaew, Tinochai, Daengwilai, Khumkreng, Srisamai, Seekhieo, Sangsila, Uralerd, Wongwun, Wangtan, Jitaree, Boonsom, Chewagulprasit, Chaidee, Sripagdee, Pothee, Buntha, Inmai, Arayasinlapathorn, and Chuanchatrisakun