Surname Гайос (Gajos 
, Gaios 
, Гайос 
) , all around the world, is quite a rare last name. The last name Гайос is habitual in Poland, where it is quite a rare surname, Austria, where it is a rare surname, and Armenia. Not in comparison with a country's population, this name is the most popular in Poland, the United States, and Germany. Likewise, Гайос is the forename as well as the last name.