Caithlin vs Caoilainn
Caithlin and Caoilainncompared 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 · Girls
In 2000, Caithlin was ranked #348 and Caoilainn #348 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2010, Caithlin was ranked #758 and Caoilainn #555 among girls in Republic of Ireland.
Caithlin and Caoilainn over time
Caithlin and Caoilainn appear together in 1 published list, across 8 years of shared records. Caithlin held the stronger position in more years in 1 of them, Caoilainn in 0.
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.
Caithlin reached its own highest recorded position earlier in 1 of those lists, and Caoilainn 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
Republic of Ireland · Girls8 shared years, 1997–2010
Caithlin held the stronger position in 3 of those years, Caoilainn in 2.
Highest recorded here: Caithlin #294 in 1999, Caoilainn #300 in 2005.
The order changed in 2005: Caoilainn moved ahead. In 2004 they stood at #369 and #606; by 2005 that had become #300 and #300.
Most recent shared year, 2010: Caithlin #758, Caoilainn #555.
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 | Caithlin | Caoilainn |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | Not yet recorded | Not yet recorded |
| Origin | Not yet recorded | Not yet recorded |
| Pronunciation | Not yet recorded | Not yet recorded |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, IE | GB-ENW, GB-NIR, IE |
| Most recent popularity observation | Republic of Ireland · Girls #758 (2010) | Republic of Ireland · Girls #621 (2019) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 76/100 | 70/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Caithlin and Caoilainn both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Caithlin
Popularity journey
First recorded1997
First recorded at #440 among girls in Republic of Ireland in 1997 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1998–2006
Highest recorded position: #293 among girls in Northern Ireland, in 2001 (recorded 1998–2006).
Northern Ireland · Girls
Most recent2010
Most recently recorded at #758 among girls in Republic of Ireland, in 2010.
Republic of Ireland · Girls
Caoilainn
Popularity journey
First recorded1997
First recorded at #496 among girls in Republic of Ireland in 1997 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1997–2019
Highest recorded position: #300 among girls in Republic of Ireland, in 2005 (recorded 1997–2019).
Republic of Ireland · Girls
Most recent2019
Most recently recorded at #621 among girls in Republic of Ireland, in 2019.
Republic of Ireland · Girls