Arthur vs Iain
Arthur and Iaincompared on official birth-registration statistics and Namewise's recorded data. This page states what each name's record shows — it never picks a winner or scores one name against the other.
Head to head
Ranks are only compared within one published list and one year. Two ranks from different years, from a boys' and a girls' list, or from different registrars are not comparable, so they are not placed side by side.
England and Wales · Boys
In 2021, Arthur was ranked #4 and Iain #3990 among boys in England and Wales.
Scotland · Boys
In 2024, Arthur was ranked #24 and Iain #727 among boys in Scotland.
Republic of Ireland · Boys
In 2011, Arthur was ranked #170 and Iain #623 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2007, Arthur was ranked #357 and Iain #315 among boys in Northern Ireland.
Arthur and Iain over time
Arthur and Iain appear together in 2 published lists, across 63 years of shared records. Arthur held the stronger position in more years in 2 of them, Iain in 0.
In none of those lists did their order change and stay changed.
Each reached its own highest recorded position first in 1 of the lists they share.
Counted list by list. Two names in the same published list are measured on the same scale in the same year, so those comparisons are real — but positions from different lists are not, so nothing here is combined into an overall standing.
How this pair is related
The relationship kinds these two qualify for, each under its own stated rule. Every one is drawn from a list they both appear in.
- Repeatedly exchanged positions
Arthur and Iain changed places 8 times in Republic of Ireland · Boys between 1965 and 2011, ending at #170 and #623.
- Longest-running competitions
Arthur and Iain were both ranked in Republic of Ireland · Boys for 38 years, from 1965 to 2011, ending at #170 and #623.
List by list
Republic of Ireland · Boys38 shared years, 1965–2011
Arthur held the stronger position in 31 of those years, Iain in 7.
Highest recorded here: Arthur #91 in 1965, Iain #186 in 1988.
The order between them never changed and held in this list.
Most recent shared year, 2011: Arthur #170, Iain #623.
England and Wales · Boys25 shared years, 1996–2021
Arthur held the stronger position in 25 of those years, Iain in 0.
Highest recorded here: Arthur #4 in 2019, Iain #319 in 1996.
The order between them never changed and held in this list.
Most recent shared year, 2021: Arthur #4, Iain #3990.
Two names moving past each other in a ranking is a fact about the ranking. Namewise does not claim one name displaced the other, that families chose between them, or that either influenced the other — none of that is in this data.
Side by side
| Field | Arthur | Iain |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | Meaning debated — no single origin is established with confidence. | Not yet recorded |
| Origin | Disputed — possibly Celtic (Brittonic), possibly Roman | Not yet recorded |
| Pronunciation | /ˈɑɹθər/ | Not yet recorded |
| Syllables | 2 | 1 |
| Common variants / nicknames | Art, Artie | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | New South Wales, Australia · Boys #19 (2025) | Scotland · Boys #727 (2024) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | high | medium |
What the data shows
- Arthur has a recorded origin (Disputed — possibly Celtic (Brittonic), possibly Roman); Iain does not have one recorded yet.
- Arthur has 2 syllables, compared with 1 for Iain.
- A meaning is recorded for Arthur; Iain doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
- The available evidence gives Arthur a "high" Data Confidence level and Iain a "medium" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Arthur
Popularity journey
First recorded1945
First recorded at #153 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1996–2024
Highest recorded position: #3 among boys in England and Wales, in 2020 (recorded 1996–2024).
England and Wales · Boys
Most recent2025
Most recently recorded at #19 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys
Iain
Popularity journey
First recorded1965
First recorded at #250 among boys in Republic of Ireland in 1965 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1965–2011
Highest recorded position: #186 among boys in Republic of Ireland, in 1988 (recorded 1965–2011).
Republic of Ireland · Boys
Most recent2021
Most recently recorded at #3990 among boys in England and Wales, in 2021.
England and Wales · Boys