Across the world, Koui (Koui 
) is a rare largely male, but uncommonly girly forename. The first name Koui is habitual in Algeria, where it is a rare masculine name, the United States, where it is an extremely rare unisex name, and India, where it is an extremely rare predominantly female, but very infrequently boy's name. More prevalently, Koui is the last name as well as the forename.