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Family name Chetty (Chetty ) , globally, is a common cognomen. The surname Chetty is characteristic of Seychelles, where it is a common surname, Fiji, where it is quite a common surname, and Marshall Islands (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in South Africa, India, and Fiji. Much less frequently, Chetty is the forename as well as the last name.