Cognomen Kattiya (ขัตติยา 
, Kattiya 
, ขัติยา ) , throughout the world, is a rare surname. The surname Kattiya is habitual in Thailand, where it is a rare surname, Canada, where it is an extremely rare surname, and the United States. Measured by absolute frequency, the name is most common in Thailand, India, and Canada. More frequently, Kattiya is the forename as well as the last name.