Cognomen Warayu (Warayu 
) , globally, is a very rare surname. The surname Warayu is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more prevalently, Warayu is the forename as well as the last name.
Mukda, Anunpakkapisiht, Katsuwan, Koedsuphap, Praysang, Thinracha, Natasiri, Musikamas, Samakthai, Chaichana, Chokothuad, Khamchang, Petcharat, Jamjumrus, Jittranon, Tongcheewong, Sanguansap, Prasertsom, Anunpakapisith, Singkham, Saiboonmee, Jaidamrong, Nanta, Melzer, Suphap, Sutthi, Kunpai, Pawana, Phasri, Ouadsuk, Thienpramuk, Chukothuad, Bunsrang, Kansorn, Konglan, Pankoed, Pankeod, Daodoung, Lokavit, Lookavit, Boonmee, and Sriwiangrat