Family name Rayap (Rayap 
, ระยับ ) , in the world, is a rare cognomen. The cognomen Rayap is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, Indonesia, where it is a very rare surname, and Malaysia. Not in comparison with a country's population, it is the most numerous in Indonesia, Thailand, and India. Also, Rayap is the forename as well as the last name.