Caolin vs Casey
Caolin and Caseycompared 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, Caolin was ranked #755 and Casey #201 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2006, Caolin was ranked #282 and Casey #207 among boys in Northern Ireland.
Side by side
| Field | Caolin | Casey |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | male | Used for both boys and girls |
| 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-NIR, IE | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NZ |
| Most recent popularity observation | Republic of Ireland · Boys #755 (2021) | Republic of Ireland · Boys #118 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 94/100 |
| International familiarity (demonstration score) | 60/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Caolin and Casey both have 2 syllables.
- Both names have recorded usage in GB-NIR, IE.
How each name got here
Caolin
Popularity journey
First recorded1994
First recorded at #342 among boys in Republic of Ireland in 1994 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1998–2006
Highest recorded position: #218 among boys in Northern Ireland, in 2001 (recorded 1998–2006).
Northern Ireland · Boys
Most recent2021
Most recently recorded at #755 among boys in Republic of Ireland, in 2021.
Republic of Ireland · Boys
Casey
Popularity journey
First recorded1971
First recorded at #304 among boys in Republic of Ireland in 1971 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1997–2024
Highest recorded position: #61 among girls in Northern Ireland, in 2007 (recorded 1997–2024).
Northern Ireland · Girls
Most recent2025
Most recently recorded at #718 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls