All over the world, Roihan (Roihan 
, รอยฮาน , รอยฮัน ) is quite a rare largely masculine, but seldom girly first name. The first name Roihan is characteristic of South-eastern Asia, particularly Indonesia, where it is a rare masculine name, Thailand, where it is a rare primarily girly, but very infrequently boy's name, and Malaysia, where it is a very rare girly name. Not in comparison with a country's population, it is commonest in Indonesia, India, and Thailand. Also, Roihan is the last name as well as the forename.