a Spanish surname. Famous Sosas include:

Sammy Sosa, Dominican Republic baseball player

Jorge Sosa, Dominican Republic baseball player

Mercedes Sosa, Argentine singer

José Ernesto Sosa, Argentine footballer

Elias Sosa, Dominican Republic baseball player

Porfirio Lobo Sosa, Honduran politician

Sōsa, Chiba, Japan

Julio Sosa, Uruguayan tango singer

Alex Sosa, a fictional drug lord from the 1983 film Scarface

Sosa, Germany, a town in the district of Aue-Schwarzenberg in Saxony