Cognomen Регин (Regine 
, Regin 
, Regyn ) , in the entire world, is quite a common family name. The family name Регин is habitual in Sub-Saharan Africa, particularly Reunion, where it is quite a common surname, Cameroon, where it is quite a rare surname, and Rwanda. Measured by absolute frequency, it most frequently occurs in Cameroon, France, and Italy. More frequently, Регин is the forename as well as the last name.