Arlie is an English name of uncertain origin, usually explained as a short form of Arline or Arlene, which in turn is often linked to the Germanic Charlene and the meaning "free woman", or as a transferred surname meaning "eagle wood" or "hare meadow". It was a quiet country name in the early 20th century and now fits the revival of vintage nicknames like Hallie and Billie. In the United States Arlie has climbed from number 4870 in 2015 to number 2470 in 2023 and ranks 2781 among girls' names in 2025.