Possibly from an Irish place name meaning "between two highlands," popularized by Edmund Spenser's poetry.
Arlo is a name with an intriguingly uncertain history, which is part of its charm. Scholars and naming historians have proposed several origins: it may derive from an English place-name, from the Old Spanish name of a location, or from literary invention shaped by the sound patterns of older European names. Some connect it to the poet Edmund Spenser, who used “Arlo Hill” in The Faerie Queene, giving the name a distinctly literary early appearance in English.
Unlike names with a single clear biblical or classical pedigree, Arlo has grown through atmosphere and usage rather than a firmly settled etymology. Its strongest cultural anchor in the United States is the folk singer Arlo Guthrie, son of Woody Guthrie, whose music and public presence gave the name a relaxed, artistic, countercultural image in the twentieth century. Because of him, Arlo long suggested guitar cases, storytelling, and a slightly bohemian independence.
It never became fully common in that era, which preserved a sense of individuality around it. That scarcity later worked in its favor when parents began seeking names that sounded established but not overused. In recent decades Arlo has risen sharply in English-speaking countries, helped by the revival of compact, vintage-sounding boy names like Milo, Leo, and Theo.
Today it feels stylish, gentle, and a bit outdoorsy, with an old-soul quality despite its uncertain roots. The name’s looseness of origin actually gives it range: literary, musical, rustic, and modern all at once. Arlo is one of those rare names whose mystery has become part of its identity. Rather than being anchored to one tradition, it invites people to hear in it whatever they most value: poetry, freedom, softness, or understated cool.