Cognomen Jaiya (Jaiya 
, ไชย , ใจยา ) , all around the world, is quite a rare surname. The cognomen Jaiya is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname, Myanmar, where it is a very rare surname, and Malaysia. Measured by absolute frequency, the name is most common in Thailand, India, and Indonesia. Also, Jaiya is the forename as well as the last name.