Rising since 2008, #3,517 for girls today.
Popularity of Harlo since 1916
Babies named Harlo per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1910s | 0 | 21 |
| 1920s | 0 | 47 |
| 1930s | 0 | 33 |
| 1940s | 0 | 16 |
| 1950s | 0 | 5 |
| 1960s | 0 | 0 |
| 1970s | 0 | 0 |
| 1980s | 0 | 0 |
| 1990s | 0 | 0 |
| 2000s | 27 | 5 |
| 2010s | 210 | 37 |
| 2020s | 210 | 142 |
Meaning & origin
Harlo entered U.S. naming records in 2008, a modern spin on the surname Harlow that has gained traction in the 2020s. Ranked 3,517th in 2025, it is given to about 1 in 37,378 newborns, with its peak year so far in 2023. The name is rising in popularity, seen most often in Georgia, New York, and Florida. Its clean, two-syllable sound and unisex appeal align with contemporary tastes for names ending in 'o.'
Harlo is a modern coinage likely derived from the English surname Harlow, which itself comes from Old English *here* meaning 'army' and *hlaw* meaning 'hill,' or alternatively from *har* 'rock' and *hlaw*. The name first appeared in U.S. records in 2008 and has been rising steadily in use, particularly for girls, as a streamlined variant of Harlow.
Where Harlo is most popular
Births per 100,000 girls by state, 2025. The lightest shade means too few recorded births.
Nicknames & variants
Nicknames: Harley, Lo
Sibling names for Harlo
Names that share Harlo's style, for a brother or sister.
