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Cognomen Sinaga (Sinaga
) , across the world, is a widespread surname. The cognomen Sinaga is characteristic of South-eastern Asia, particularly Indonesia, where it is quite a common surname, Malaysia, where it is quite a rare surname, and Singapore. Measured by absolute frequency, the name is most common in Indonesia, Malaysia, and the United States. Much less frequently, Sinaga is the forename as well as the last name.