Family name Chitwiwat (จิตวิวัฒน์ 
, Chitwiwat , จิตต์วิวัฒน์ ) , all over the world, is a rare surname. The cognomen Chitwiwat is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, Chitwiwat is the forename as well as the last name.