Roo
UnisexGirls' nameBoys' nameMeaning not yet documented
Roo has been given to 31 babies in the U.S. since 2020. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 2022, with 8 recorded. It's used for both sexes: 84% girls, 16% boys all-time.
Babies named Roo, 2024
1 in 557,000
Roo over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
Girls or boys — Roo over time
In 2024, Roo went to 55% girls and 45% boys.
A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.
How common is Roo?
Roo had fewer than 5 recorded uses in 2025, so these figures use 2024, the last year it was published.
- Among all babies, 2024
- 1 in 557,000
- 6 of 3,342,801 births
- Among girls only
- 1 in 270,000
- <0.01% of girls
- Rank, 2024
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 386,177 kids
- Even odds of a second one
Where Roo sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2024 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 386,177 children born in 2024 and it's an even bet that one of them is another Roo. In a class of 30 the chance is Under 1%.
When Roos were born
Half of everyone ever recorded as Roo was born before 2022 — so the typical Roo is around 3 today.
- Biggest decade
- 2020s
- 100.0% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 26
- People you could plausibly meet
2020s — 100.0% of all recorded uses (26).
Is Roo rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 2022 (8)
- Years since peak
- 3
- Years
- Year-to-year steadiness
- Shifting
- 13.4% average annual change
Roo around the world
Where Roo ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.
- England & Wales2018–2025#4,201in 2025
Popularity data from Office for National Statistics. ONS data under Open Government Licence v3.0.
Roo by the numbers
The raw record for each sex the name is used for.
As a girl's name
Names similar to Roo
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Roo
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.