Family name Gamr (غمر 
, Gamr 
) , all over the world, is quite a rare last name. The family name Gamr is habitual in Sudan, where it is quite a rare surname, Saudi Arabia, where it is a rare surname, and Libya. Measured by absolute frequency, it most frequently occurs in Sudan, Saudi Arabia, and Egypt. Likewise, Gamr is the forename as well as the last name.