Cognomen Олая (Olaya 
, Олая) , throughout the world, is a common surname. The last name Олая is habitual in Latin America and the Caribbean, particularly Colombia, where it is quite a common surname, Peru, and Aruba. Not in comparison with a country's population, this name is the most popular in Latin America and the Caribbean, particularly Colombia, Peru, and Mexico. Very seldom, Олая is the forename as well as the last name.