Cognomen Wiracha (วิรชา 
, Wiracha ) , in all the world, is a very rare last name. The family name Wiracha is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, Wiracha is the forename as well as the last name.
Choma, Guntason, Lorattawut, Tangpissatansakul, Muangmoon, Sirichaiarpornkul, Chottithong, Chottitong, Choosamoot, Doungphet, Leewannapasai, Navanukroh, Maneechote, Methachawalit, Sitprasertnan, Sungkitboon, Suksirivoraboot, Suwannatrai, Kanchanasevee, Longjaikam, Rattanasopa, Daopakanan, Khawparisut, Takam, Chutip, Jummun, Mapitak, Siripat, Supawan, Boonrod, Bunkhao, Khunudom, Komkiaew, Daochai, Lewrungrot, Warisai, Suksawat, Chabutchin, Baiyapruek, Boonkong, Ketprayoon, Koomdech, and Chairattananan