Family name Янас (Janas 
, Янас 
) , around the world, is quite a common last name. The cognomen Янас is habitual in Poland, where it is quite a common surname, Czechia, where it is quite a rare surname, and Malta. Not in comparison with a country's population, it is commonest in Poland, the United States, and Germany. Also, Янас is the forename as well as the last name.