Rook
#1,972 in 2025UnisexBoys' nameGirls' nameMeaning not yet documented
Rook has been given to 750 babies in the U.S. since 2001. In 2025 it ranked #1,972 of 13,926 boys’ names in use. Its peak year was 2025, with 78 recorded. It's used for both sexes: 95% boys, 5% girls all-time.
Babies named Rook, 2025
1 in 42,500
Rook 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 — Rook over time
In 2025, Rook went to 11% girls and 89% 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 Rook?
Everything below is computed from the 2025 data — the most recent year available.
- Among all babies, 2025
- 1 in 42,500
- 78 of 3,315,165 births
- Among boys only
- 1 in 21,900
- <0.01% of boys
- Rank, 2025
- #1,972
- of 13,926 boys’ names in use
- Coin-flip room size
- 29,461 kids
- Even odds of a second one
Where Rook sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 29,461 children born in 2025 and it's an even bet that one of them is another Rook. In a class of 30 the chance is Under 1%.
When Rooks were born
Half of everyone ever recorded as Rook was born before 2019 — so the typical Rook is around 6 today.
- Biggest decade
- 2020s
- 48.0% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 715
- People you could plausibly meet
2020s — 48.0% of all recorded uses (343).
Is Rook 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
- +390
- Places climbed
- Rank vs 5 years ago
- +1,217
- Places climbed
- Rank vs 10 years ago
- +1,102
- Places climbed
- Births vs 10 years ago
- 2.05×
- More babies than then
- Share of its own peak
- 100.0%
- Peak was 2025 (78)
- Years since peak
- Peaking now
- At its all-time high
- Year-to-year steadiness
- Volatile
- 38.6% average annual change
Spellings of Rook
Rook is not the most common spelling — Roy is, with 47.7% against Rook's 0.08%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Rook is used
Across 1910–2025, Rook was most concentrated in Utah — about 1 in 100,000 boys, against 1 in 550,044 across all states with data. It was least common in Texas (1 in —).
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Rook has too little recent state data to map, so this covers all years from 1910.
Rook around the world
Where Rook 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 & Wales2022–2022#4,790in 2022
- Canada2016–2024#2,328in 2024
- South Australia2008–2008#726in 2008
Popularity data from Office for National Statistics, Statistics Canada and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.
Rook by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Rook
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Rook
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.