Iain
- Pronunciation
- [Ia-in]
- Gender
- Male
- Meaning
- Gaelic Form Of John (God Is Gracious)
- Origin
- Gaelic
Iain Popularity Snapshot
Across the entire US Social Security Administration record (1880–2024), 2,899 baby boys have been named Iain. The name peaked in 2003 with 126 US births that year (rank #1181). In 2024, ranked #4227 nationally — 3,046 places below its 2003 peak.
Top States for Iain
Based on 1910–2024 US SSA state-level records, the three states with the most Iain births are: California (323), Texas (156), New York (86).
Other Gaelic-Origin Names Like Iain
If you like Iain's Gaelic origin, consider these related names: Abboid, Ahern, Aibhlin, Aidan, Ailin. Browse all Gaelic names →
4-Letter Names Starting with I
Names with Iain's exact length and starting letter: Iago, Idal, Idas, Iden, Idla.
Quick Facts About Iain
Variant Forms
Looking for names like Iain?
A dedicated page with 60+ related names — spelling variants, rhymes, alliterations, same-origin matches, and shared meaning concepts — lives at its own URL so each kind of similarity gets a deeper treatment than fits here.
Compare Iain to Other Popular Names
Side-by-side popularity charts and crossover years for Iain against today's most popular boys-name peers (top 8 by US births in the last 10 years of SSA records).