Cognomen Wanchalerm (Wanchalerm 
) , throughout the world, is an extremely rare surname. The cognomen Wanchalerm is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much more frequently, Wanchalerm is the forename as well as the last name.
Popee, Taweeaperadeemanee, Yeethohun, Musikawan, Subprasom, Sonsrimai, Srisurayothin, Prapawicha, Promduang, Phuphakdee, Rompochee, Langkawiket, Jongpiriyapaiboon, Thongthae, Chungsiriwattana, Patarawetsakul, Prommachat, Jiraprapat, Naraprasertwong, Wongsalert, Wiwatsiripong, Chaichomphoo, Jitdamri, Dungmanee, Ruksrisuk, Khwammai, Lonok, Sankom, Salkom, Sukmak, Somkul, Rosjun, Rodtaeng, Jaitam, Jubjai, Inkong, Pakdeesattayakul, Meechai, Aunshoung, Boonmak, Ronpiboon, Noomuean, Noychalern, Nunvititpong, Suansane, Chandang, Chaithip, Bannaruk, Arsanok, and Jaroenphithakporn