Surname جايلين (Jaylen 
, Gaylen 
, Gaylyn 
) , throughout the world, is a rare family name. The cognomen جايلين is habitual in Malaysia, where it is a rare surname, Ethiopia, where it is a very rare surname, and Honduras. Not in comparison with a country's population, it most frequently occurs in Malaysia, Ethiopia, and the United States. More frequently, جايلين is the forename as well as the last name.