Harlie is a spelling of Harley, an English surname and place name from the Old English hara and leah, "hare clearing" or "hare meadow". For girls the name took off in the 1990s, helped by the comic-book character Harley Quinn, and the -ie ending gives Harlie a softer, more clearly feminine look. Harlie stood at number 1327 in 2000, peaked at number 1200 in 2001 and ranks number 2520 among girls' names in 2025.