Cai vs Ollie
Cai and Olliecompared 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 · Boys
In 2023, Cai was ranked #272 and Ollie #27 among boys in Northern Ireland.
Republic of Ireland · Boys
In 2023, Cai was ranked #660 and Ollie #37 among boys in Republic of Ireland.
England and Wales · Boys
In 2025, Cai was ranked #687 and Ollie #123 among boys in England and Wales.
England and Wales · Girls
In 2006, Cai was ranked #5061 and Ollie #5061 among girls in England and Wales.
Cai and Ollie over time
Cai and Ollie appear together in 1 published list, across 30 years of shared records. Ollie held the stronger position in more years in 1 of them, Cai 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.
Cai reached its own highest recorded position earlier in 1 of those lists, and Ollie 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.
- Mirrored each other
Over 30 shared years in England and Wales · Boys, Ollie rose about as far as Cai fell — from #435 and #1458 in 1996 to #687 and #123 in 2025.
- Longest-running competitions
Cai and Ollie were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #687 and #123.
List by list
England and Wales · Boys30 shared years, 1996–2025
Cai held the stronger position in 8 of those years, Ollie in 22.
Highest recorded here: Cai #214 in 2006, Ollie #63 in 2010.
The order changed in 2004: Ollie moved ahead. In 2003 they stood at #233 and #377; by 2004 that had become #271 and #255.
Most recent shared year, 2025: Cai #687, Ollie #123.
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 Ollie
Pairs where Ollie shares a published list with another name, each measured inside one registrar's own list.
- Alfie vs Ollie
Alfie and Ollie both rose over the same years in 3 registrars — England and Wales · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Alfie · Ollie · 30 shared years, 1996–2025 · Moved together in several countries
- Arlo vs Ollie
Arlo and Ollie both rose over the same years in 3 registrars — England and Wales · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Arlo · Ollie · 27 shared years, 1999–2025 · Moved together in several countries
- Arthur vs Ollie
Arthur and Ollie both rose over the same years in 3 registrars — England and Wales · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Arthur · Ollie · 30 shared years, 1996–2025 · Moved together in several countries
- Harry vs Ollie
Both reached their highest recorded position in England and Wales · Boys within 2 years — Harry #1 in 2011, Ollie #63 in 2010.
Harry · Ollie · 30 shared years, 1996–2025 · Peaked in the same years
Side by side
| Field | Cai | Ollie |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | Not yet recorded | Not yet recorded |
| Origin | Not yet recorded | Not yet recorded |
| Pronunciation | Not yet recorded | Not yet recorded |
| Syllables | 1 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, IE | GB-ENW, GB-NIR, GB-SCT, IE, NZ |
| Most recent popularity observation | England and Wales · Boys #687 (2025) | Republic of Ireland · Boys #31 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Cai has 1 syllable, compared with 2 for Ollie.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Cai
Popularity journey
First recorded1996
First recorded at #3795 among girls in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Highest recorded1996–2025
Highest recorded position: #214 among boys in England and Wales, in 2006 (recorded 1996–2025).
England and Wales · Boys
Most recent2025
Most recently recorded at #687 among boys in England and Wales, in 2025.
England and Wales · Boys
Ollie
Popularity journey
First recorded1996
First recorded at #1458 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 recorded2008–2024
Highest recorded position: #18 among boys in Northern Ireland, in 2016 (recorded 2008–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #5927 among girls in England and Wales, in 2025.
England and Wales · Girls