In the entire world, Pirachai (พีระชัย 
, Pirachai ) is a rare principally boy's, but very infrequently girly first name. The first name Pirachai is habitual in South-eastern Asia, particularly Thailand, where it is a rare principally boy's, but very seldom girly name. Much less frequently, Pirachai is the last name as well as the forename.