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Cognomen Penalba (Peñalba , Penalba , Пенальба ) , around the globe, is quite a common last name. The cognomen Penalba is habitual in Latin America and the Caribbean, particularly Panama, where it is quite a common surname, Argentina, where it is quite a rare surname, and El Salvador. Measured by absolute frequency, this name is the most popular in Argentina, Panama, and Spain. Much less frequently, Penalba is the forename as well as the last name.