Olly vs Zack
Olly and Zackcompared 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 2024, Olly was ranked #305 and Zack #177 among boys in Northern Ireland.
Republic of Ireland · Boys
In 2025, Olly was ranked #676 and Zack #179 among boys in Republic of Ireland.
Scotland · Boys
In 2024, Olly was ranked #246 and Zack #181 among boys in Scotland.
England and Wales · Boys
In 2024, Olly was ranked #622 and Zack #338 among boys in England and Wales.
Olly and Zack over time
Olly and Zack appear together in 3 published lists, across 58 years of shared records. Zack held the stronger position in more years in 2 of them, Olly in 1.
In none of those lists did their order change and stay changed.
Zack reached its own highest recorded position earlier in 2 of those lists, Olly in 1. 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
Olly and Zack changed places 6 times in Northern Ireland · Boys between 2009 and 2024, ending at #305 and #177.
- Mirrored each other
Over 25 shared years in England and Wales · Boys, Olly rose about as far as Zack fell — from #2097 and #214 in 1999 to #622 and #338 in 2024.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Olly #106 in 2012, Zack #138 in 2010.
List by list
England and Wales · Boys25 shared years, 1999–2024
Olly held the stronger position in 7 of those years, Zack in 18.
Highest recorded here: Olly #106 in 2012, Zack #138 in 2010.
The order between them never changed and held in this list.
Most recent shared year, 2024: Olly #622, Zack #338.
Republic of Ireland · Boys17 shared years, 2009–2025
Olly held the stronger position in 0 of those years, Zack in 17.
Highest recorded here: Olly #188 in 2019, Zack #140 in 2021.
The order between them never changed and held in this list.
Most recent shared year, 2025: Olly #676, Zack #179.
Northern Ireland · Boys16 shared years, 2009–2024
Olly held the stronger position in 9 of those years, Zack in 7.
Highest recorded here: Olly #91 in 2012, Zack #135 in 2011.
The order between them never changed and held in this list.
Most recent shared year, 2024: Olly #305, Zack #177.
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 | Olly | Zack |
|---|---|---|
| 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 | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Republic of Ireland · Boys #676 (2025) | Republic of Ireland · Boys #179 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Olly has 2 syllables, compared with 1 for Zack.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Olly
Popularity journey
First recorded1999
First recorded at #2097 among boys in England and Wales in 1999 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Boys
Highest recorded2009–2024
Highest recorded position: #91 among boys in Northern Ireland, in 2012 (recorded 2009–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #676 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys
Zack
Popularity journey
First recorded1996
First recorded at #188 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 recorded1998–2024
Highest recorded position: #135 among boys in Northern Ireland, in 2011 (recorded 1998–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #179 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys