Aiden vs Ciaran
Aiden and Ciarancompared 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.
Scotland · Boys
In 2024, Aiden was ranked #135 and Ciaran #191 among boys in Scotland.
England and Wales · Boys
In 2024, Aiden was ranked #145 and Ciaran #800 among boys in England and Wales.
Republic of Ireland · Boys
In 2025, Aiden was ranked #149 and Ciaran #372 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Aiden was ranked #216 and Ciaran #216 among boys in Northern Ireland.
Aiden and Ciaran over time
Aiden and Ciaran appear together in 3 published lists, across 117 years of shared records. Ciaran held the stronger position in more years in 2 of them, Aiden in 1.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
Ciaran reached its own highest recorded position earlier in 2 of those lists, Aiden 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.
- Longest-running competitions
Aiden and Ciaran were both ranked in Republic of Ireland · Boys for 60 years, from 1964 to 2025, ending at #149 and #372.
List by list
Republic of Ireland · Boys60 shared years, 1964–2025
Aiden held the stronger position in 7 of those years, Ciaran in 53.
Highest recorded here: Aiden #92 in 1968, Ciaran #23 in 2000.
The order changed in 2018: Aiden moved ahead. In 2017 they stood at #214 and #78; by 2018 that had become #216 and #520.
Most recent shared year, 2025: Aiden #149, Ciaran #372.
England and Wales · Boys29 shared years, 1996–2024
Aiden held the stronger position in 27 of those years, Ciaran in 2.
Highest recorded here: Aiden #61 in 2011, Ciaran #107 in 2004.
The order between them never changed and held in this list.
Most recent shared year, 2024: Aiden #145, Ciaran #800.
Northern Ireland · Boys28 shared years, 1997–2024
Aiden held the stronger position in 0 of those years, Ciaran in 27.
Highest recorded here: Aiden #149 in 2011, Ciaran #26 in 1998.
The order between them never changed and held in this list.
Most recent shared year, 2024: Aiden #216, Ciaran #216.
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 | Aiden | Ciaran |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | male | male |
| Meaning | Not yet recorded | 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). |
| Origin | Not yet recorded | Irish, from Old Irish ciar ('dark') |
| Pronunciation | Not yet recorded | /ˈciə.ɾˠaːnˠ/ |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Ciarán, Kieran, Kieron, Kyran |
| 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 | Republic of Ireland · Boys #149 (2025) | Republic of Ireland · Boys #372 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 94/100 | 88/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | high |
What the data shows
- Ciaran has a recorded origin (Irish, from Old Irish ciar ('dark')); Aiden does not have one recorded yet.
- Aiden and Ciaran both have 2 syllables.
- A meaning is recorded for Ciaran; Aiden doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
- The available evidence gives Aiden a "medium" Data Confidence level and Ciaran a "high" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Aiden
Popularity journey
First recorded1964
First recorded at #94 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 recorded1999–2024
Highest recorded position: #33 among boys in New South Wales, Australia, in 2010 (recorded 1999–2024).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #301 among boys in Norway, in 2025.
Norway · Boys
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