Between two hills or fortified hill
Arlow is a modern variant of the English surname and place name Harlow. It likely derives from the Old English words 'haer' (rock or army) and 'hlaw' (hill or mound), often interpreted as a fortified hill or a location between two hills.
About 38 boys were named Arlow in 2025.
US births per 5-year period, 1990–present (SSA data).
