Boy name · Uncertain
Arlo
Arlo is a boy's name of Uncertain origin, meaning "Fortified hill (possibly)". It is squarely part of the current wave of modern UK baby names, and we file it here as a modern name — useful shorthand if you're building a shortlist around a particular feel rather than starting from scratch.
At a glance
- Meaning
- Fortified hill (possibly)
- Origin
- Uncertain
- Gender
- Boy
- Style
- modern
Names similar to Arlo
Sharing at least one style with Arlo — a starting point if you like the feel but want more options.
Sibling name pairings
Names that share Arlo's style, if you're planning ahead for a brother or sister.
Questions about the name Arlo
What does the name Arlo mean?
Arlo is of Uncertain origin and means "Fortified hill (possibly)".
Is Arlo a popular baby name in the UK?
Naming trends shift every year, so rather than quote a number that goes stale, check the current official rankings on the Office for National Statistics' baby names release — search "Arlo" at ons.gov.uk for the latest England & Wales data.
What names are similar to Arlo?
Names with a similar style to Arlo include Leo, Archie, Finn, Jude.
For current official UK popularity rankings, see the ONS baby names statistics for England and Wales — the only authoritative live source. Explore more names in our Baby Name Finder, or try our due date calculator if you're just getting started.
Reviewed August 2026.