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Cognomen Sanha (Sanha , สรรหา , สาฬห ) , across the world, is quite a common surname. The family name Sanha is characteristic of Guinea-Bissau, where it is quite a common surname, Portugal, where it is quite a rare surname, and Guinea. Measured by absolute frequency, it is the most numerous in India, Guinea-Bissau, and the Democratic Republic of the Congo. Much less frequently, Sanha is the forename as well as the last name.