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Family name Llerena (Llerena ) , worldwide, is a common cognomen. The surname Llerena is habitual in Latin America and the Caribbean, particularly Peru, where it is quite a common surname, Cuba, where it is quite a rare surname, and Panama. Measured by absolute frequency, it most frequently occurs in Peru, Colombia, and the United States. Much less frequently, Llerena is the forename as well as the last name.