Baby Name Meanings Arlo. It was so SO fun to hear all of your baby name suggestions on this post several years ago. The name Arlo is a boys name of Spanish origin.
As a surname it also has roots in a place name meaning rocky hill. The name Arlo is a unisex name meaning fortified hill and is of English origin. It was most likely a late 16th century creation by Elizabethan poet Sir Edmund Spenser author of the epic poem The Faerie Queene considered one of the greatest works of English literature.
Man of the hill.
It is of Spanish origin and the meaning of Arlo is barberry tree. The name Arlo may be originally derived from Anglo-Saxon origin. I love this name for a girl and plan on using it as a middle name for my daughter. Now that were talking sibling baby names.