Aaron vs Koby
Aaron and Kobycompared 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 2025, Aaron was ranked #71 and Koby #509 among boys in Republic of Ireland.
New South Wales, Australia · Boys
In 2011, Aaron was ranked #91 and Koby #100 among boys in New South Wales, Australia.
Scotland · Boys
In 2024, Aaron was ranked #114 and Koby #619 among boys in Scotland.
England and Wales · Boys
In 2024, Aaron was ranked #154 and Koby #448 among boys in England and Wales.
Northern Ireland · Boys
In 2024, Aaron was ranked #187 and Koby #404 among boys in Northern Ireland.
Aaron and Koby over time
Aaron and Koby appear together in 3 published lists, across 49 years of shared records. Aaron held the stronger position in more years in 3 of them, Koby in 0.
In none of those lists did their order change and stay changed.
Aaron reached its own highest recorded position earlier in 3 of those lists, and Koby 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.
List by list
England and Wales · Boys28 shared years, 1997–2024
Aaron held the stronger position in 28 of those years, Koby in 0.
Highest recorded here: Aaron #31 in 1998, Koby #368 in 2020.
The order between them never changed and held in this list.
Most recent shared year, 2024: Aaron #154, Koby #448.
Republic of Ireland · Boys12 shared years, 2013–2025
Aaron held the stronger position in 12 of those years, Koby in 0.
Highest recorded here: Aaron #24 in 2013, Koby #350 in 2024.
The order between them never changed and held in this list.
Most recent shared year, 2025: Aaron #71, Koby #509.
Northern Ireland · Boys9 shared years, 2009–2024
Aaron held the stronger position in 9 of those years, Koby in 0.
Highest recorded here: Aaron #14 in 2009, Koby #281 in 2014.
The order between them never changed and held in this list.
Most recent shared year, 2024: Aaron #187, Koby #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 | Aaron | Koby |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | Best known as the name of Moses's elder brother and the first high priest of Israel in the Old Testament; the literal meaning of the name itself is not reliably established. | Not yet recorded |
| Origin | Biblical Hebrew (likely of Egyptian origin) | Not yet recorded |
| Pronunciation | /ˈɛrən/ | Not yet recorded |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Republic of Ireland · Boys #71 (2025) | Republic of Ireland · Boys #509 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 94/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Aaron has a recorded origin (Biblical Hebrew (likely of Egyptian origin)); Koby does not have one recorded yet.
- Aaron and Koby both have 2 syllables.
- A meaning is recorded for Aaron; Koby doesn't have one written yet.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Aaron
Popularity journey
First recorded1965
First recorded at #222 among boys in Republic of Ireland in 1965 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1965–2025
Highest recorded position: #6 among boys in Republic of Ireland, in 1998 (recorded 1965–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #334 among boys in Norway, in 2025.
Norway · Boys
Koby
Popularity journey
First recorded1997
First recorded at #2859 among boys in England and Wales in 1997 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Boys
Highest recorded2008–2011
Highest recorded position: #84 among boys in New South Wales, Australia, in 2008 (recorded 2008–2011).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #509 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys