A 1910s favorite, climbing again.
Popularity of Reo since 1912
Babies named Reo per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1910s | 91 |
| 1920s | 119 |
| 1930s | 39 |
| 1940s | 63 |
| 1950s | 49 |
| 1960s | 23 |
| 1970s | 29 |
| 1980s | 78 |
| 1990s | 95 |
| 2000s | 70 |
| 2010s | 97 |
| 2020s | 82 |
Meaning & origin
Reo is a rare modern name that first appeared in U.S. records in 1912. It peaked in popularity in 1917 but then faded almost entirely before beginning a gradual rise again since 2003. In 2025, it ranked 6803, with about 1 in every 142,340 boys receiving the name. Its origins are unclear, but it functions as a short, sleek choice often associated with the similar name Rio. While never widely used, its recent upward trajectory suggests a niche appeal among parents seeking uncommon, one-syllable names.
Reo is primarily a modern English coinage, likely a short form of names such as Mateo or Romeo, or a respelling of Rio. Its usage as a given name is rare but has seen a gradual increase since the early 2000s.
Nicknames & variants
Variants: Rio
Sibling names for Reo
Names that share Reo's style, for a brother or sister.

