In all the world, Amonchai (อมรชัย 
, Amonchai 
) is quite a rare principally masculine, but very infrequently girly forename. The forename Amonchai is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare principally masculine, but very seldom feminine name. Very seldom, Amonchai is the last name as well as the forename.