13,602births recorded
16Countries
3Variants
2025Peak · Northern Ireland
#50New South Wales 2025
Koa is a boy name family recorded 13,602 times in 16 countries since 1976. It ranks highest today in New South Wales (#50 in 2025). Its all-time peak was in Northern Ireland in 2025, at 124.3 births per 100,000.
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
Which form wins where
Births per 100,000 newborns for each form, in the selected country.
Rank in countries that publish top lists only
All forms of Koa
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Koa | English | 8,548 | 🇺🇸 United States | #269 | 2025 | ▲ 811 % |
| Koa | English | 1,238 | 🏴 England & Wales | #199 | 2025 | ▲ 3,249 % |
| Koa | English | 556 | 🇦🇺 New South Wales | #50 | 2025 | – |
| Koa | English | 129 | 🇨🇦 British Columbia | #399 | 2022 | ▲ 25 % |
| Koa | English | 122 | 🇨🇦 Ontario | #503 | 2024 | – |
| Koa | English | 97 | 🏴 Scotland | #152 | 2025 | new |
| Koah | English | 1,438 | 🇺🇸 United States | #912 | 2025 | ▲ 1,343 % |
| Koah | English | 221 | 🏴 England & Wales | #697 | 2025 | new |
| Koah | English | 10 | 🏴 Scotland | #560 | 2025 | – |
| Koah | English | 9 | 🇮🇪 Ireland | #402 | 2025 | – |
| Koah | English | 7 | 🇬🇧 Northern Ireland | – | 2021 | – |
| Koah | English | 6 | 🇨🇦 Alberta | – | 2024 | – |
| Khoa | English | 822 | 🇺🇸 United States | #4396 | 1985 | ▲ 97 % |
| Khoa | English | 5 | 🇨🇦 Ontario | – | 2008 | – |
How we grouped these names
- Koa ↔ Koah — spelling variant
- Koa ↔ Khoa — spelling variant
Questions about Koa
How popular is the name Koa?
In 2025 it ranked #50 in New South Wales. Official registers record 13,602 births across 16 countries.
What is Koa in other languages?
Koah (English); Khoa (English).
When was Koa most popular?
It peaked in Northern Ireland in 2025, at 124.3 births per 100,000.
Is Koa a boy or a girl name?
In official birth registers, Koa is a boy name.