Aurora vs Caoilainn
Aurora 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.
England and Wales · Girls
In 2015, Aurora was ranked #136 and Caoilainn #4736 among girls in England and Wales.
Republic of Ireland · Girls
In 2019, Aurora was ranked #180 and Caoilainn #621 among girls in Republic of Ireland.
Aurora and Caoilainn over time
Aurora and Caoilainn appear together in 1 published list, across 11 years of shared records. Aurora 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.
Caoilainn reached its own highest recorded position earlier in 1 of those lists, and Aurora 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.
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
Aurora and Caoilainn changed places 5 times in Republic of Ireland · Girls between 2008 and 2019, ending at #180 and #621.
List by list
Republic of Ireland · Girls11 shared years, 2008–2019
Aurora held the stronger position in 7 of those years, Caoilainn in 4.
Highest recorded here: Aurora #155 in 2018, Caoilainn #317 in 2012.
The order changed in 2015: Aurora moved ahead. In 2014 they stood at #536 and #427; by 2015 that had become #402 and #660.
Most recent shared year, 2019: Aurora #180, Caoilainn #621.
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 | Aurora | 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 | |
| Syllables | 3 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | GB-ENW, GB-NIR, IE |
| Most recent popularity observation | Norway · Girls #14 (2025) | Republic of Ireland · Girls #621 (2019) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 70/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Aurora has 3 syllables, compared with 2 for Caoilainn.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Aurora
Popularity journey
First recorded1953
First recorded at #390 among girls in Norway in 1953 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1953–2025
Highest recorded position: #14 among girls in Norway, in 2025 (recorded 1953–2025).
Norway · Girls
Most recent2025
Most recently recorded at #39 among girls in England and Wales, in 2025.
England and Wales · 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