Family name Waat (วัด 
, Waat 
) , all over the world, is a very rare cognomen. The family name Waat is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname, Thailand, and Philippines, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Malaysia, India, and Thailand. Likewise, Waat is the forename as well as the last name.