Cognomen Spas (Спас 
, Spas 
) , all around the world, is quite a common last name. The cognomen Spas is habitual in Bulgaria, where it is quite a common surname, Serbia, where it is quite a rare surname, and Ukraine. Not in comparison with a country's population, this name is the most popular in Bulgaria, Ukraine, and France. Likewise, Spas is the forename as well as the last name.