Colby vs Koa
Colby and Koacompared 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, Colby was ranked #216 and Koa #154 among boys in Northern Ireland.
Scotland · Boys
In 2024, Colby was ranked #165 and Koa #169 among boys in Scotland.
England and Wales · Boys
In 2024, Colby was ranked #222 and Koa #206 among boys in England and Wales.
Republic of Ireland · Boys
In 2025, Colby was ranked #577 and Koa #286 among boys in Republic of Ireland.
England and Wales · Girls
In 2024, Colby was ranked #5891 and Koa #2253 among girls in England and Wales.
Colby and Koa over time
Colby and Koa appear together in 1 published list, across 14 years of shared records. Colby held the stronger position in more years in 1 of them, Koa 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.
Colby reached its own highest recorded position earlier in 1 of those lists, and Koa 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.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Colby #222 in 2023, Koa #206 in 2024.
List by list
England and Wales · Boys14 shared years, 2004–2024
Colby held the stronger position in 13 of those years, Koa in 1.
Highest recorded here: Colby #222 in 2023, Koa #206 in 2024.
The order changed in 2024: Koa moved ahead. In 2023 they stood at #222 and #258; by 2024 that had become #222 and #206.
Most recent shared year, 2024: Colby #222, Koa #206.
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 | Colby | Koa |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | male | male |
| Meaning | Not yet recorded | A genuine cross-language homonym rather than one shared name. In Maori, Te Aka records two distinct words spelled 'koa': a grammatical particle, and separately a word for 'to be glad, joyful' / 'happiness'. Separately, in Hawaiian, the name means 'warrior' (also the name of the koa tree). |
| Origin | Not yet recorded | Maori and Hawaiian (unrelated homonyms) |
| Pronunciation | Not yet recorded | /ˈkoa/ |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Republic of Ireland · Boys #577 (2025) | New South Wales, Australia · Boys #50 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 94/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Koa has a recorded origin (Maori and Hawaiian (unrelated homonyms)); Colby does not have one recorded yet.
- Colby has 2 syllables, compared with 1 for Koa.
- A meaning is recorded for Koa; Colby doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Colby
Popularity journey
First recorded1996
First recorded at #2683 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
Most recent2025
Most recently recorded at #577 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys
Koa
Popularity journey
First recorded2004
First recorded at #3651 among boys in England and Wales in 2004 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Boys
Highest recorded2021–2025
Highest recorded position: #50 among boys in New South Wales, Australia, in 2025 (recorded 2021–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #50 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys