Finn vs Kai
Finn and Kaicompared 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, Finn was ranked #15 and Kai #69 among boys in Northern Ireland.
Republic of Ireland · Boys
In 2025, Finn was ranked #15 and Kai #34 among boys in Republic of Ireland.
Scotland · Boys
In 2024, Finn was ranked #17 and Kai #56 among boys in Scotland.
New South Wales, Australia · Boys
In 2025, Finn was ranked #52 and Kai #23 among boys in New South Wales, Australia.
England and Wales · Boys
In 2024, Finn was ranked #83 and Kai #72 among boys in England and Wales.
Norway · Boys
In 2025, Finn was ranked #153 and Kai #282 among boys in Norway.
England and Wales · Girls
In 2021, Finn was ranked #3519 and Kai #3961 among girls in England and Wales.
Finn and Kai over time
Finn and Kai appear together in 6 published lists, across 195 years of shared records. Neither was ahead in more lists than the other.
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.
Finn reached its own highest recorded position earlier in 4 of those lists, Kai in 2. 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
Finn and Kai changed places 4 times in New South Wales, Australia · Boys between 2005 and 2025, ending at #52 and #23.
- Closest over the longest run
Across 29 shared years in England and Wales · Boys, Finn and Kai averaged 48.9 places apart, ending at #83 and #72.
- Longest-running competitions
Finn and Kai were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #153 and #282.
- Peaked in the same years
Both reached their highest recorded position in Northern Ireland · Boys within 2 years — Finn #7 in 2020, Kai #52 in 2021.
List by list
Norway · Boys81 shared years, 1945–2025
Finn held the stronger position in 45 of those years, Kai in 36.
Highest recorded here: Finn #31 in 1945, Kai #57 in 1976.
The order between them never changed and held in this list.
Most recent shared year, 2025: Finn #153, Kai #282.
England and Wales · Boys29 shared years, 1996–2024
Finn held the stronger position in 4 of those years, Kai in 25.
Highest recorded here: Finn #72 in 2021, Kai #56 in 2003.
The order between them never changed and held in this list.
Most recent shared year, 2024: Finn #83, Kai #72.
Republic of Ireland · Boys28 shared years, 1997–2025
Finn held the stronger position in 28 of those years, Kai in 0.
Highest recorded here: Finn #6 in 2020, Kai #30 in 2024.
The order between them never changed and held in this list.
Most recent shared year, 2025: Finn #15, Kai #34.
Northern Ireland · Boys27 shared years, 1998–2024
Finn held the stronger position in 25 of those years, Kai in 1.
Highest recorded here: Finn #7 in 2020, Kai #52 in 2021.
The order between them never changed and held in this list.
Most recent shared year, 2024: Finn #15, Kai #69.
New South Wales, Australia · Boys20 shared years, 2005–2025
Finn held the stronger position in 7 of those years, Kai in 13.
Highest recorded here: Finn #39 in 2017, Kai #20 in 2023.
The order between them never changed and held in this list.
Most recent shared year, 2025: Finn #52, Kai #23.
England and Wales · Girls10 shared years, 1997–2021
Finn held the stronger position in 2 of those years, Kai in 8.
Highest recorded here: Finn #2416 in 2000, Kai #1126 in 1997.
The order changed in 2021: Finn moved ahead. In 2020 they stood at #5742 and #4050; by 2021 that had become #3519 and #3961.
Most recent shared year, 2021: Finn #3519, Kai #3961.
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 | Finn | Kai |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | Traditionally associated with the Irish hero Fionn mac Cumhaill; functions as the usual Anglicised spelling of the Irish name Fionn. | Not yet recorded |
| Origin | Irish | Not yet recorded |
| Pronunciation | /fɪn/ | Not yet recorded |
| Syllables | 1 | 1 |
| 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, NO |
| Most recent popularity observation | Republic of Ireland · Boys #15 (2025) | New South Wales, Australia · Boys #23 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | 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
- Finn has a recorded origin (Irish); Kai does not have one recorded yet.
- Finn and Kai both have 1 syllable.
- A meaning is recorded for Finn; Kai doesn't have one written yet.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO.
How each name got here
Finn
Popularity journey
First recorded1945
First recorded at #31 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1982–2025
Highest recorded position: #6 among boys in Republic of Ireland, in 2020 (recorded 1982–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #52 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys
Kai
Popularity journey
First recorded1945
First recorded at #76 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded2002–2025
Highest recorded position: #20 among boys in New South Wales, Australia, in 2023 (recorded 2002–2025).
New South Wales, Australia · Boys
Most recent2025
Most recently recorded at #23 among boys in New South Wales, Australia, in 2025.
New South Wales, Australia · Boys