Last name コスマ (Cosma 
, コスマ) , in the entire world, is a common family name. The family name コスマ is habitual in Romania, where it is quite a common surname, Cyprus, and Italy, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in Romania, Italy, and Tanzania. Likewise, コスマ is the forename as well as the last name.