33,057births recorded
13Countries
1Variants
1978Peak · Scotland
#253Scotland 2025
Duncan is a boy name family recorded 33,057 times in 13 countries since 1880. It ranks highest today in Scotland (#253 in 2025). Its all-time peak was in Scotland in 1978, at 209.5 births per 100,000.
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
All forms of Duncan
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Duncan | English | 21,230 | 🇺🇸 United States | #1123 | 1997 | ▼ 29 % |
| Duncan | English | 3,617 | 🏴 Scotland | #253 | 1978 | ▼ 19 % |
| Duncan | English | 3,211 | 🇨🇦 Ontario | #719 | 1917 | ▼ 44 % |
| Duncan | English | 1,445 | 🇫🇷 France | #2344 | 1998 | ▼ 37 % |
| Duncan | English | 1,238 | 🏴 England & Wales | #1538 | 1996 | ▲ 23 % |
| Duncan | English | 1,146 | 🇨🇦 British Columbia | – | 1994 | – |
Questions about Duncan
How popular is the name Duncan?
In 2025 it ranked #253 in Scotland. Official registers record 33,057 births across 13 countries.
When was Duncan most popular?
It peaked in Scotland in 1978, at 209.5 births per 100,000.
Is Duncan a boy or a girl name?
In official birth registers, Duncan is a boy name.