Cailum vs Cian

Cailum and Ciancompared 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.

Republic of Ireland · Boys
In 2021, Cailum was ranked #755 and Cian #23 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2021, Cailum was ranked #374 and Cian #67 among boys in Northern Ireland.
England and Wales · Boys
In 2012, Cailum was ranked #4805 and Cian #265 among boys in England and Wales.

Cailum and Cian over time

Cailum and Cian appear together in 2 published lists, across 24 years of shared records. Cian held the stronger position in more years in 2 of them, Cailum in 0.

In none of those lists did their order change and stay changed.

Cailum reached its own highest recorded position earlier in 2 of those lists, and Cian in none. 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.

List by list

England and Wales · Boys13 shared years, 1996–2012
Cailum held the stronger position in 0 of those years, Cian in 13.
Highest recorded here: Cailum #2142 in 2000, Cian #187 in 2005.
The order between them never changed and held in this list.
Most recent shared year, 2012: Cailum #4805, Cian #265.
Republic of Ireland · Boys11 shared years, 1999–2021
Cailum held the stronger position in 0 of those years, Cian in 11.
Highest recorded here: Cailum #290 in 1999, Cian #7 in 2002.
The order between them never changed and held in this list.
Most recent shared year, 2021: Cailum #755, Cian #23.

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.

Where to go next

Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.

Other comparisons involving Cian

Pairs where Cian shares a published list with another name, each measured inside one registrar's own list.

Cian vs Dean
Over 60 shared years in Republic of Ireland · Boys, Cian rose about as far as Dean fell — from #177 and #229 in 1966 to #33 and #432 in 2025.
Cian · Dean · 60 shared years, 1966–2025 · Mirrored each other
See the 2025 Republic of Ireland ranking
George vs Cian
Over 60 shared years in Republic of Ireland · Boys, Cian rose about as far as George fell — from #55 and #177 in 1966 to #112 and #33 in 2025.
George · Cian · 60 shared years, 1966–2025 · Mirrored each other
See the 2025 Republic of Ireland ranking
Cian vs Jonathan
Over 60 shared years in Republic of Ireland · Boys, Cian rose about as far as Jonathan fell — from #177 and #103 in 1966 to #33 and #223 in 2025.
Cian · Jonathan · 60 shared years, 1966–2025 · Mirrored each other
See the 2025 Republic of Ireland ranking
Cian vs Ross
Over 59 shared years in Republic of Ireland · Boys, Cian rose about as far as Ross fell — from #177 and #199 in 1966 to #33 and #329 in 2025.
Cian · Ross · 59 shared years, 1966–2025 · Mirrored each other
See the 2025 Republic of Ireland ranking

Side by side

Side-by-side comparison of Cailum, Cian
Field	Cailum	Cian
Record type	Official statistical record (evidence-only)	Editorially researched profile
Gender usage	male	male
Meaning	Not yet recorded	Commonly interpreted as 'ancient' or 'enduring'.
Origin	Not yet recorded	Irish
Pronunciation	Not yet recorded	/ˈkiːən/
Syllables	2	1
Common variants / nicknames	Not yet recorded	Kian
Recorded regional usage	GB-ENW, GB-NIR, IE	GB-ENW, GB-NIR, GB-SCT, IE
Most recent popularity observation	Northern Ireland · Boys #374 (2021)	Republic of Ireland #24 (2025)
Pronunciation clarity (demonstration score)	Not yet recorded	90/100
Spelling simplicity (demonstration score)	88/100	95/100
International familiarity (demonstration score)	100/100	100/100
Data Confidence	medium	high

What the data shows

Cian has a recorded origin (Irish); Cailum does not have one recorded yet.
Cailum has 2 syllables, compared with 1 for Cian.
A meaning is recorded for Cian; Cailum doesn't have one written yet.
Both names have recorded usage in GB-ENW, GB-NIR, IE.
The available evidence gives Cailum a "medium" Data Confidence level and Cian a "high" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.

How each name got here

Cailum

Popularity journey

First recorded1996
First recorded at #2357 among boys in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Boys
Highest recorded1997–2021
Highest recorded position: #271 among boys in Northern Ireland, in 1997 (recorded 1997–2021).
Northern Ireland · Boys
Most recent2021
Most recently recorded at #374 among boys in Northern Ireland, in 2021.
Northern Ireland · Boys

Cian

Popularity journey

First recorded1966
First recorded at #177 among boys in Republic of Ireland in 1966 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1966–2025
Highest recorded position: #6 among boys in Republic of Ireland, in 2000 (recorded 1966–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #24 in Republic of Ireland, in 2025.
Republic of Ireland