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Family name Sigula (Sigula ) , in the world, is a rare cognomen. The cognomen Sigula is habitual in Tanzania, where it is a rare surname, South Africa, where it is a very rare surname, and Germany, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Tanzania, South Africa, and India. Very seldom, Sigula is the forename as well as the last name.