All around the world, Kayen (Kayen 
) is a rare largely masculine, but infrequently feminine forename. The given name Kayen is characteristic of Algeria, where it is a rare masculine name, Morocco, where it is a very rare masculine name, and Tanzania. Measured by absolute frequency, this name is the most popular in India, Indonesia, and Algeria. Also, Kayen is the last name as well as the forename.