Arlen \a-rlen, ar-len\ as a boy's name (also used as girl's name Arlen), is pronounced AR-len. It is of Gaelic origin, and the meaning of Arlen is "pledge, oath".

Arlen has 9 variant forms: Arlan, Arland, Arlando, Arlenn, Arles, Arlin, Arlyn, Arllen and Arrlen.

Baby names that sound like Arlen are Erlend, Orlin and Orlan.