Declining since 1994, #4,352 for girls today.
Popularity of Brook since 1915
Babies named Brook per year in U.S. Social Security records.
Data table (by decade)
| Decade | Girls | Boys |
|---|---|---|
| 1910s | 0 | 17 |
| 1920s | 0 | 6 |
| 1930s | 5 | 36 |
| 1940s | 25 | 70 |
| 1950s | 107 | 168 |
| 1960s | 308 | 709 |
| 1970s | 1,857 | 930 |
| 1980s | 2,241 | 593 |
| 1990s | 3,009 | 419 |
| 2000s | 2,051 | 194 |
| 2010s | 828 | 161 |
| 2020s | 199 | 88 |
Meaning & origin
Brook entered U.S. records in 1931 and peaked in popularity in 1980. Since 1994, its usage has been steadily declining. In 2025, it ranked 4352, occurring in 1 out of every 50227 births. The name is most commonly found in California. As a topographic name, it evokes imagery of gentle waters and has been used both as a variant of Brooke and as an independent name.
Brook is derived from the Old English word 'brōc', meaning a small stream or watercourse. It was originally used as a topographic surname for someone who lived near a brook. As a given name, it gained popularity in the 20th century, often used for girls as a variant of Brooke.
Where Brook is most popular
Births per 100,000 girls by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.
Nicknames & variants
Variants: Brooke
Sibling names for Brook
Names that share Brook's style, for a brother or sister.
