In all the world, Ussein (Ussein 
) is a rare principally boy's, but scarcely feminine forename. The first name Ussein is habitual in Bulgaria, where it is a rare masculine name, Nigeria, where it is a very rare gender-neutral name, and China, where it is a very rare predominantly masculine, but very infrequently feminine name. Measured by absolute frequency, it is the most numerous in China, Nigeria, and India. Likewise, Ussein is the last name as well as the forename.