Cognomen Γιάνης (Yanis 
, Γιάνης, Yánis) , in all the world, is a common family name. The last name Γιάνης is characteristic of Algeria, where it is quite a common surname, Panama, where it is quite a rare surname, and Papua New Guinea. Not in comparison with a country's population, it is commonest in Algeria, Indonesia, and France. More frequently, Γιάνης is the forename as well as the last name.