Cognomen Осса (Ossa 
, Осса 
) , all over the world, is a common last name. The family name Осса is characteristic of Colombia, where it is quite a common surname, Gabon, and Panama, where it is quite a rare surname. In absolute terms, the name is most common in Colombia, the Democratic Republic of the Congo, and Chile. Much less frequently, Осса is the forename as well as the last name.