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Cognomen Rocas (Rocas
, Рокас
, רוקאס
) , throughout the world, is quite a rare surname. The surname Rocas is characteristic of Philippines, where it is quite a rare surname, Portugal, where it is a rare surname, and Romania. Not in comparison with a country's population, it is the most numerous in Philippines, Spain, and Angola. Much less frequently, Rocas is the forename as well as the last name.