Globally, Катаюн (Katayoun 
, Катаюн 
) is a rare predominantly feminine, but scarcely male first name. The first name Катаюн is habitual in Sweden, where it is a rare female name, Iran, where it is a rare predominantly feminine, but very seldom male name, and the United States, where it is a very rare mostly girly, but infrequently masculine name. Not in comparison with a country's population, it is the most numerous in the United States, Iran, and France. Very seldom, Катаюн is the last name as well as the forename.