Arlo is a distinctive girls' name in England & Wales, ranking #3035 in 2025 with 8 recorded births. The name reached its all-time peak in 2023 with 21 births ranking #1469. In 2025, approximately 1 in every 31,660 girls born was named Arlo. FALLING Recent data shows the name is currently falling.
Arlo is a stylish English name with an uncertain exact meaning. Behind the Name gives its strongest route as a literary and place-name-inspired form rather than a neat inherited definition.
The name may have been inspired by Arlo Hill in Spenser's The Faerie Queene, with that form likely influenced by the Irish place name Aherlow. Modern popularity has much more to do with sound and style than with a single simple literal meaning.