Family name رین (Rin 
, رین) , in all the world, is a common last name. The cognomen رین is habitual in Brunei, where it is quite a common surname, Malaysia, and Tunisia, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in South-eastern Asia, particularly Indonesia, Malaysia, and Philippines. Likewise, رین is the forename as well as the last name.