Globally, Lailen (Lailen 
) is a rare dominantly female, but seldom masculine first name. The first name Lailen is habitual in Philippines, where it is a rare female name, and India, where it is an extremely rare epicene name. Very seldom, Lailen is the last name as well as the forename.
Man, Grande, Juarez, Timosa, Ecoben, Ebrada, Valero, Marcelo, Mahilum, Magdael, Catapat, Batista, Bulauan, Pedrosa, Garibay, Jimenez, Navarro, Quijote, Macatigos, Sindatoc, Albancis, Bantigue, Reuyan, Blanco, Barton, Colina, Daa, Jim, Base, Baua, Tito, Wong, Menzi, Saspa, Agito, Peiro, Dela Cruz, Rodes, Garay, Lakra, Lacse, Toroy, Hebra, Mojina, Araujo, Artoza, Castro, Casale, Reana, and Francisco