Ailis vs Caithlin
Ailis and Caithlincompared 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 2001, Ailis was ranked #293 and Caithlin #293 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2007, Ailis was ranked #842 and Caithlin #404 among girls in Republic of Ireland.
England and Wales · Girls
In 2000, Ailis was ranked #1688 and Caithlin #3912 among girls in England and Wales.
Ailis and Caithlin over time
Ailis and Caithlin appear together in 1 published list, across 10 years of shared records. Caithlin held the stronger position in more years in 1 of them, Ailis 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 Ailis 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.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Girls within 2 years — Ailis #324 in 2000, Caithlin #294 in 1999.
List by list
Republic of Ireland · Girls10 shared years, 1997–2007
Ailis held the stronger position in 2 of those years, Caithlin in 8.
Highest recorded here: Ailis #324 in 2000, Caithlin #294 in 1999.
The order changed in 2001: Caithlin moved ahead. In 2000 they stood at #324 and #536; by 2001 that had become #441 and #369.
Most recent shared year, 2007: Ailis #842, Caithlin #404.
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 | Ailis | Caithlin |
|---|---|---|
| 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 | England and Wales · Girls #4645 (2022) | Republic of Ireland · Girls #758 (2010) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 94/100 | 76/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Ailis and Caithlin both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Ailis
Popularity journey
First recorded1964
First recorded at #327 among girls in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1997–2001
Highest recorded position: #293 among girls in Northern Ireland, in 2001 (recorded 1997–2001).
Northern Ireland · Girls
Most recent2022
Most recently recorded at #4645 among girls in England and Wales, in 2022.
England and Wales · Girls
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