In all the world, ไวยวัฒน์ (ไวยวัฒน์ 
, Vaiyawat , Waiwat 
) is a very rare largely male, but uncommonly female first name. The given name ไวยวัฒน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare largely masculine, but seldom girly name. Likewise, ไวยวัฒน์ is the last name as well as the forename.