Arlen as a Baby Name. Meaning and Origin of Arlen

What is the meaning of the name Arlen ?

The baby name Arlen is a Unisex name , 2 syllables long and is pronounced AR-len (IPA: /ˈɑːrlən/ or /ˈɑrlən/).

Arlen is Gaelic, Irish in Origin.

Arlen is a modern given name with several proposed roots. As a transferred surname it may relate to English place-names akin to Harlan (“hare land”) or to Germanic Erlen/Erle (“alder”), while some Irish name guides connect it with Gaelic elements glossed “pledge” or “oath.” The -en ending and the rise of Arlene in early 20th‑century America also suggest it functions as a streamlined, gender-neutral coinage rather than a single-heritage name.

Use of Arlen appears in U.S. records from the 1910s, peaking mid‑century alongside Arlene, then settling into steady but modest use, more often for boys yet still occasionally unisex. Notable bearers include U.S. senator Arlen Specter and guitarist Arlen Roth. Common variants and relatives are Arlan, Arlin, Arlyn/Arlynn, Arland, and the feminine forms Arlene, Arleen, and Arline. With its clean sound and flexible origins, Arlen is often interpreted to mean “hare land,” “alder,” or “oath.”