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Across the world, Cois (Cois
, كويس
, Койс
) is a rare masculine forename. The first name Cois is characteristic of Saudi Arabia, where it is a rare boy's name, Belgium, where it is a very rare boy's name, and Egypt. Measured by absolute frequency, it most frequently occurs in Saudi Arabia, Egypt, and the United States. More frequently, Cois is the last name as well as the forename.