Aron vs Caio
Aron and Caiocompared 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.
England and Wales · Boys
In 2024, Aron was ranked #406 and Caio #1076 among boys in England and Wales.
Republic of Ireland · Boys
In 2024, Aron was ranked #655 and Caio #655 among boys in Republic of Ireland.
Aron and Caio over time
Aron and Caio appear together in 1 published list, across 28 years of shared records. Aron held the stronger position in more years in 1 of them, Caio in 0.
In none of those lists did their order change and stay changed.
Aron reached its own highest recorded position earlier in 1 of those lists, and Caio 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, 1996–2024
Aron held the stronger position in 28 of those years, Caio in 0.
Highest recorded here: Aron #292 in 1996, Caio #758 in 2022.
The order between them never changed and held in this list.
Most recent shared year, 2024: Aron #406, Caio #1076.
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 | Aron | Caio |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | The Polish, Croatian and Scandinavian form of Aaron — etymology uncertain, like Aaron itself, though traditionally connected to Egyptian or Hebrew roots. | Not yet recorded |
| Origin | Hebrew, via Polish/Croatian/Scandinavian transmission | Not yet recorded |
| Pronunciation | /ˈɑː.rɔn/ | Not yet recorded |
| Syllables | 2 | 1 |
| Common variants / nicknames | Aaron | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, IE, NO | GB-ENW, IE |
| Most recent popularity observation | Norway · Boys #78 (2025) | Republic of Ireland · Boys #655 (2024) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | high | medium |
What the data shows
- Aron has a recorded origin (Hebrew, via Polish/Croatian/Scandinavian transmission); Caio does not have one recorded yet.
- Aron has 2 syllables, compared with 1 for Caio.
- A meaning is recorded for Aron; Caio doesn't have one written yet.
- Both names have recorded usage in GB-ENW, IE.
- The available evidence gives Aron a "high" Data Confidence level and Caio a "medium" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Aron
Popularity journey
First recorded1968
First recorded at #267 among boys in Republic of Ireland in 1968 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1970–2025
Highest recorded position: #52 among boys in Norway, in 2023 (recorded 1970–2025).
Norway · Boys
Most recent2025
Most recently recorded at #78 among boys in Norway, in 2025.
Norway · Boys
Caio
Popularity journey
First recorded1996
First recorded at #2020 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 recorded2020–2024
Highest recorded position: #496 among boys in Republic of Ireland, in 2020 (recorded 2020–2024).
Republic of Ireland · Boys
Most recent2024
Most recently recorded at #1076 among boys in England and Wales, in 2024.
England and Wales · Boys