Jalen \j(a)-len\ as a boy's name. Modern name, probably from Galen (Greek) "healer, tranquil" with a J-. Jalen has 15 variant forms: Jaelan, Jaelin, Jaelon, Jailin, Jaillen, Jaillin, Jailon, Jalan, Jalin, Jalon, Jayelan, Jayelen, Jaylan, Jaylon and Jaylonn. For more information, see also the related name Ja-. Baby names that sound like Jalen are Jaylen and Jalenn. View a list of the 3 names that reference Jalen.