Ciaran vs Ian
Ciaran and Iancompared 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.
Northern Ireland · Boys
In 2023, Ciaran was ranked #169 and Ian #348 among boys in Northern Ireland.
Scotland · Boys
In 2024, Ciaran was ranked #191 and Ian #619 among boys in Scotland.
Republic of Ireland · Boys
In 2025, Ciaran was ranked #372 and Ian #262 among boys in Republic of Ireland.
England and Wales · Boys
In 2024, Ciaran was ranked #800 and Ian #535 among boys in England and Wales.
Ciaran and Ian over time
Ciaran and Ian appear together in 3 published lists, across 108 years of shared records. Ciaran held the stronger position in more years in 3 of them, Ian in 0.
The order between them changed and held in 2 of those lists — a change in that published list, never a claim that one name displaced the other.
Ian reached its own highest recorded position earlier in 2 of those lists, Ciaran in 1. Each position is a place inside its own list, so this compares when they peaked and never how high.
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
Ciaran and Ian changed places 9 times in Republic of Ireland · Boys between 1964 and 2025, ending at #372 and #262.
- Longest-running competitions
Ciaran and Ian were both ranked in Republic of Ireland · Boys for 61 years, from 1964 to 2025, ending at #372 and #262.
- Peaked in the same years
Both reached their highest recorded position in Northern Ireland · Boys within 2 years — Ciaran #26 in 1998, Ian #118 in 1999.
- Started together, ended far apart
In 1996 they stood at #136 and #138 in England and Wales · Boys, 2 places apart; by 2024 they were #800 and #535.
List by list
Republic of Ireland · Boys61 shared years, 1964–2025
Ciaran held the stronger position in 40 of those years, Ian in 19.
Highest recorded here: Ciaran #23 in 2000, Ian #24 in 1990.
The order changed in 2018: Ian moved ahead. In 2017 they stood at #78 and #263; by 2018 that had become #520 and #291.
Most recent shared year, 2025: Ciaran #372, Ian #262.
England and Wales · Boys29 shared years, 1996–2024
Ciaran held the stronger position in 18 of those years, Ian in 11.
Highest recorded here: Ciaran #107 in 2004, Ian #138 in 1996.
The order changed in 2014: Ian moved ahead. In 2013 they stood at #489 and #596; by 2014 that had become #562 and #489.
Most recent shared year, 2024: Ciaran #800, Ian #535.
Northern Ireland · Boys18 shared years, 1997–2023
Ciaran held the stronger position in 18 of those years, Ian in 0.
Highest recorded here: Ciaran #26 in 1998, Ian #118 in 1999.
The order between them never changed and held in this list.
Most recent shared year, 2023: Ciaran #169, Ian #348.
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 | Ciaran | Ian |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| Gender usage | male | male |
| Meaning | The unaccented catalogue spelling of Ciarán, a diminutive of Ciar ('black, dark') — borne by two 6th-century Irish saints, Ciarán the Elder (founder of Saighir) and Ciarán the Younger (founder of Clonmacnoise). | An Anglicized form of Scottish Gaelic Iain, itself from Latin Iohannes — ultimately from the same Hebrew root as John. |
| Origin | Irish, from Old Irish ciar ('dark') | Hebrew, via Scottish Gaelic transmission |
| Pronunciation | /ˈciə.ɾˠaːnˠ/ | /ˈiː.ən/ |
| Syllables | 2 | 1 |
| Common variants / nicknames | Ciarán, Kieran, Kieron, Kyran | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Boys #372 (2025) | Republic of Ireland · Boys #262 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | 90/100 |
| Spelling simplicity (demonstration score) | 88/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | high | medium |
What the data shows
- Ciaran is recorded with a Irish, from Old Irish ciar ('dark') origin, while Ian is recorded with a Hebrew, via Scottish Gaelic transmission origin.
- Ciaran has 2 syllables, compared with 1 for Ian.
- Ciaran's recorded meaning differs from Ian's — see the table above for each.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
- The available evidence gives Ciaran a "high" Data Confidence level and Ian a "medium" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Ciaran
Popularity journey
First recorded1964
First recorded at #49 among boys in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1964–2025
Highest recorded position: #23 among boys in Republic of Ireland, in 2000 (recorded 1964–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #372 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys
Ian
Popularity journey
First recorded1947
First recorded at #351 among boys in Norway in 1947 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1952–1989
Highest recorded position: #9 among boys in New South Wales, Australia, in 1954 (recorded 1952–1989).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #263 among boys in Norway, in 2025.
Norway · Boys