Brook
About 14,021 American babies have been named Brook since 1915, most of them around 1980. It is given to both boys and girls. In 2025 it ranked 4,352nd. About 13,000 Brooks are alive in the United States today, and half of them are over 35.
Popularity, 1880–2025
girls named Brook boys named Brook
Girls and boys called Brook
years more girls than boys years more boys than girls
Brook crossed from boys to girls in 1972, and has stayed there for 54 of the years counted since. At its furthest it was 95% girls, and in 2025 it was 68%.
The girls’ share of each year’s babies of the name, in the 71 years in which at least 25 babies got it. The line touches the middle more often than there are crossings marked: a year or two on the other side is not a name changing hands, and only a move that holds for 5 counted years and reaches 60/40 is recorded as one. All 581 names that changed sex.
By the numbers
- Total US births
- 14,021
- Estimated living today
- 13,000
- Median age today
- 35
- Peak year
- 1980
- Best rank
- 503rd
- Rank in 2025
- 4,352nd
- First recorded
- 1915
- Girls / boys
- 10,630 / 3,391
How old the living Brooks are
born that year still alive today
Of the 14,021 babies given the name since 1915, about 13,000 are alive — 95 in every hundred. Roughly 1,600 of them are children and 300 are 65 or over. The dotted line is the median: half were born before 1990 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where the name comes from
Origin a surname
Etymology from Wiktionary, used under CC BY-SA 4.0.
Notable Brooks
- Brook Taylor (1685–1732)English mathematician
- Brook Lopez (born 1988)American basketball player
- Brook Lee (born 1971)American beauty queen, Miss Universe 1997
- Brook Benton (1931–1988)American singer
People named Brook with articles in the most Wikipedia languages. Data from Wikidata (CC0).
Where Brook is most common
Relative to how many babies each state records, Brook is most concentrated in Utah (3.3×), Idaho (2.6×), Oregon (2.3×), Indiana (2.0×).
Total births recorded in each state since 1910. Browse names by state.
Names of 1980
The most popular girls’ names the year Brook peaked:
Brook elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| England and Wales boys | Brook | 551 | 555th |
| England and Wales girls | Brook | 352 | 987th |
| France girls | Brook | 50 | 5,699th |
| Scotland girls | Brook | 21 | 479th |
| Scotland boys | Brook | 16 | 436th |
| Ireland girls | Brook | 10 | 705th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Related names
Brook against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.