Surname Watthanachit (วัฒนจิตต์ 
, Watthanachit , วัฒนจิตร ) , around the globe, is a very rare family name. The cognomen Watthanachit is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, Watthanachit is the forename as well as the last name.