4,357births recorded
7Countries
1Variants
1985Peak · South Australia
#2645United States 2025
Kirby is a girl name family recorded 4,357 times in 7 countries since 1917. It ranks highest today in the United States (#2645 in 2025). Its all-time peak was in South Australia in 1985, at 101.9 births per 100,000.
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
All forms of Kirby
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Kirby | English | 3,963 | 🇺🇸 United States | #2645 | 1984 | ▲ 158 % |
| Kirby | English | 195 | 🏴 England & Wales | – | 1996 | – |
| Kirby | English | 73 | 🇦🇺 South Australia | – | 1985 | – |
| Kirby | English | 60 | 🇨🇦 Ontario | – | 1983 | – |
| Kirby | English | 41 | 🇨🇦 Alberta | – | 1984 | – |
| Kirby | English | 20 | 🇨🇦 British Columbia | – | 1984 | – |
Questions about Kirby
How popular is the name Kirby?
In 2025 it ranked #2645 in the United States. Official registers record 4,357 births across 7 countries.
When was Kirby most popular?
It peaked in South Australia in 1985, at 101.9 births per 100,000.
Is Kirby a boy or a girl name?
In official birth registers, Kirby is a girl name.