12,580births recorded
11Countries
2Variants
1977Peak · Scotland
#400Scotland 2025
Iain is a boy name family recorded 12,580 times in 11 countries since 1952. It ranks highest today in Scotland (#400 in 2025). Its all-time peak was in Scotland in 1977, at 644.6 births per 100,000. Elsewhere it is mostly given as Yain (Argentina).
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.
All forms of Iain
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Iain | English | 7,193 | 🏴 Scotland | #400 | 1977 | ▼ 13 % |
| Iain | English | 2,911 | 🇺🇸 United States | #7194 | 2003 | ▼ 76 % |
| Iain | English | 986 | 🇨🇦 Ontario | – | 1982 | – |
| Iain | English | 503 | 🏴 England & Wales | – | 1996 | – |
| Iain | English | 248 | 🇮🇪 Ireland | – | 1995 | – |
| Iain | English | 234 | 🇨🇦 British Columbia | – | 1968 | – |
| Yain | Spanish | 339 | 🇦🇷 Argentina | #2517 | 2008 | ▼ 27 % |
| Yain | Spanish | 6 | 🇺🇸 United States | – | 2009 | – |
How we grouped these names
- Iain ↔ Yain — spelling variant
Questions about Iain
How popular is the name Iain?
In 2025 it ranked #400 in Scotland. Official registers record 12,580 births across 11 countries.
What is Iain in other languages?
Yain (Spanish).
When was Iain most popular?
It peaked in Scotland in 1977, at 644.6 births per 100,000.
Is Iain a boy or a girl name?
In official birth registers, Iain is a boy name.