unisex name
Osa
- Gender Unisex
- Letters 3
- Popularity Rare
- Births on record 770
Osa is a unisex name. It is given to both girls and boys — about 89% of recorded births with this name are girls. In 2025 it was given to 9 babies in the United States. It is a rare choice.
- Peaked in 1918, when 28 babies were given the name.
- Its usage has held steady over the past decade.
- Today about 1 in 368,460 babies in the United States is given this name.
Osa over time
Births per decade in the United States, 1880s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1880s | 80 |
| 1890s | 139 |
| 1900s | 109 |
| 1910s | 143 |
| 1920s | 146 |
| 1930s | 62 |
| 1940s | 31 |
| 1950s | 8 |
| 1960s | 5 |
| 2010s | 22 |
| 2020s (to 2025) | 25 |
How popular is Osa?
In 2025, Osa was given to 9 babies in the United States. It is a rare choice.
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
Names that peaked alongside Osa
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Osa also like
Names whose popularity has risen and fallen in step with Osa over the last century — the same taste, a different name.
Sibling names for Osa
Names from the same era that won't rhyme or share an initial with Osa — the two things that make a sibling set grate.
Common questions about Osa
How popular is the name Osa?
In 2025, Osa was given to 9 babies in the United States. It is a rare choice.
Is Osa a girl's or a boy's name?
Osa is used for both girls and boys. About 89% of recorded births with this name are girls.
When was Osa most popular?
Osa peaked in 1918, when 28 babies were given the name. Its usage has held steady over the past decade.
Is Osa a good name?
That is not something records can settle, but they can tell you what you would be choosing. Osa currently ranks #10,521 in the United States. Its usage has held steady over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.