Radley is an English surname and place name from the Old English read and leah, meaning "red clearing". Most Americans know it from Boo Radley, the reclusive neighbor in Harper Lee's To Kill a Mockingbird, which gives the name a literary, slightly mysterious air. Radley has hovered around number 2000 for a decade, reached a best rank of 1579 in 2024 and stands at number 1834 in 2025.