Finn vs Theo
Finn and Theo compared 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.
Scotland · Boys
In 2024, Finn was ranked #17 and Theo #4 among boys in Scotland.
Northern Ireland · Boys
In 2024, Finn was ranked #15 and Theo #5 among boys in Northern Ireland.
England and Wales · Boys
In 2025, Finn was ranked #74 and Theo #12 among boys in England and Wales.
Republic of Ireland · Boys
In 2025, Finn was ranked #15 and Theo #21 among boys in Republic of Ireland.
New Zealand · Boys
In 2023, Finn was ranked #32 and Theo #19 among boys in New Zealand.
Norway · Boys
In 2025, Finn was ranked #153 and Theo #22 among boys in Norway.
New South Wales, Australia · Boys
In 2025, Finn was ranked #52 and Theo #32 among boys in New South Wales, Australia.
England and Wales · Girls
In 2021, Finn was ranked #3519 and Theo #5581 among girls in England and Wales.
Finn and Theo over time
Higher on the chart is a stronger position. The scale is logarithmic, so the gap from #1 to #10 is drawn as large as the gap from #100 to #1,000.
Higher on the chart is a stronger position. The scale is logarithmic, so the gap from #1 to #10 is drawn as large as the gap from #100 to #1,000.
Finn and Theo over time
Finn and Theo appear together in 5 published lists, across 129 years of shared records. Finn held the stronger position in more years in 3 of them, Theo in 2.
The order between them changed and held in 4 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 5 of those lists, and Theo 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.
- One moved ahead of the other
In 2022, Theo moved ahead of Finn in New Zealand · Boys — #25 and #42 the year before became #33 and #23.
- Closest over the longest run
Across 30 shared years in England and Wales · Boys, Finn and Theo averaged 51.8 places apart, ending at #74 and #12.
- Longest-running competitions
Finn and Theo were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #74 and #12.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Finn #72 in 2021, Theo #9 in 2022.
List by list
Norway · Boys36 shared years, 1986–2025
Finn held the stronger position in 9 of those years, Theo in 27.
Highest recorded here: Finn #134 in 2021, Theo #17 in 2024.
The order changed in 2001: Theo moved ahead. In 2000 they stood at #233 and #318; by 2001 that had become #261 and #225.
Most recent shared year, 2025: Finn #153, Theo #22.
England and Wales · Boys30 shared years, 1996–2025
Finn held the stronger position in 8 of those years, Theo in 22.
Highest recorded here: Finn #72 in 2021, Theo #9 in 2022.
The order between them never changed and held in this list.
Most recent shared year, 2025: Finn #74, Theo #12.
Republic of Ireland · Boys30 shared years, 1988–2025
Finn held the stronger position in 29 of those years, Theo in 0.
Highest recorded here: Finn #6 in 2020, Theo #13 in 2024.
The order changed in 1996: Finn moved ahead. In 1995 they stood at #319 and #319; by 1996 that had become #208 and #295.
Most recent shared year, 2025: Finn #15, Theo #21.
Northern Ireland · Boys23 shared years, 2001–2024
Finn held the stronger position in 17 of those years, Theo in 4.
Highest recorded here: Finn #7 in 2020, Theo #4 in 2022.
The order changed in 2020: Theo moved ahead. In 2019 they stood at #11 and #13; by 2020 that had become #7 and #7.
Most recent shared year, 2024: Finn #15, Theo #5.
New Zealand · Boys10 shared years, 2014–2023
Finn held the stronger position in 8 of those years, Theo in 2.
Highest recorded here: Finn #25 in 2020, Theo #19 in 2023.
The order changed in 2022: Theo moved ahead. In 2021 they stood at #25 and #42; by 2022 that had become #33 and #23.
Most recent shared year, 2023: Finn #32, Theo #19.
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.
Where to go next
Comparisons that share a name, a rule or a published list with this one. Each is an existing comparison page with its own evidence — nothing here says these pairs are alike.
Other comparisons involving Finn
Pairs where Finn shares a published list with another name, each measured inside one registrar's own list.
- Finn vs Arild
In 1945 they stood at #31 and #32 in Norway · Boys, 1 places apart; by 2025 they were #153 and #489.
Finn · Arild · 75 shared years, 1945–2025 · Started together, ended far apart
- Finn vs Aksel
Finn and Aksel were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #153 and #25.
Finn · Aksel · 81 shared years, 1945–2025 · Longest-running competitions
- Anders vs Finn
Anders and Finn were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #293 and #153.
Anders · Finn · 81 shared years, 1945–2025 · Longest-running competitions
- Andreas vs Finn
Andreas and Finn were both ranked in Norway · Boys for 81 years, from 1945 to 2025, ending at #96 and #153.
Andreas · Finn · 81 shared years, 1945–2025 · Longest-running competitions
Other comparisons involving Theo
Pairs where Theo shares a published list with another name, each measured inside one registrar's own list.
- Arthur vs Theo
Arthur and Theo both rose over the same years in 5 registrars — England and Wales · Boys; New Zealand · Boys; Northern Ireland · Boys; Norway · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Arthur · Theo · 37 shared years, 1986–2025 · Moved together in several countries
- Henry vs Theo
Henry and Theo both rose over the same years in 5 registrars — England and Wales · Boys; New Zealand · Boys; Northern Ireland · Boys; Norway · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Henry · Theo · 37 shared years, 1986–2025 · Moved together in several countries
- Noah vs Theo
Noah and Theo both rose over the same years in 5 registrars — England and Wales · Boys; New Zealand · Boys; Northern Ireland · Boys; Norway · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Noah · Theo · 33 shared years, 1990–2025 · Moved together in several countries
- Theo vs Archie
Theo and Archie both rose over the same years in 4 registrars — England and Wales · Boys; New Zealand · Boys; Northern Ireland · Boys; Republic of Ireland · Boys. Each list is measured against its own starting position; the positions are never combined.
Theo · Archie · 30 shared years, 1996–2025 · Moved together in several countries
Other pairs with the same kind of relationship
Pairs that qualify under the same rule as this one — one moved ahead of the other.
- Emily vs Amelia
In 2011, Amelia moved ahead of Emily in England and Wales · Girls — #3 and #5 the year before became #5 and #1.
Emily · Amelia · 30 shared years, 1996–2025 · One moved ahead of the other
- Sophie vs Amelia
In 2011, Amelia moved ahead of Sophie in England and Wales · Girls — #2 and #5 the year before became #6 and #1.
Sophie · Amelia · 30 shared years, 1996–2025 · One moved ahead of the other
- Sarah vs Angela
In 1974, Sarah moved ahead of Angela in New Zealand · Girls — #6 and #5 the year before became #1 and #6.
Sarah · Angela · 36 shared years, 1958–1998 · One moved ahead of the other
- Emma vs Aoife
In 2003, Emma moved ahead of Aoife in Republic of Ireland · Girls — #4 and #2 the year before became #1 and #3.
Emma · Aoife · 62 shared years, 1964–2025 · One moved ahead of the other
Other pairs from Northern Ireland lists
Pairs measured inside Northern Ireland's own published lists, where this pair's strongest relationship is also recorded. Positions in these lists are not comparable with another registrar's.
- Charlotte vs Jodie
In 1997 they stood at #72 and #77 in Northern Ireland · Girls, 5 places apart; by 2021 they were #13 and #446.
Charlotte · Jodie · 23 shared years, 1997–2021 · Started together, ended far apart
- Emily vs Rachael
In 1997 they stood at #32 and #25 in Northern Ireland · Girls, 7 places apart; by 2017 they were #1 and #432.
Emily · Rachael · 19 shared years, 1997–2017 · Started together, ended far apart
- Grace vs Fiona
In 1997 they stood at #57 and #66 in Northern Ireland · Girls, 9 places apart; by 2017 they were #2 and #432.
Grace · Fiona · 18 shared years, 1997–2017 · Started together, ended far apart
- Oliver vs Colin
In 1997 they stood at #100 and #96 in Northern Ireland · Boys, 4 places apart; by 2021 they were #5 and #433.
Oliver · Colin · 21 shared years, 1997–2021 · Started together, ended far apart
Other pairs ranked together in the 2020s
Pairs both ranked in the same published list at some point between 2020 and 2029.
- Grace vs Gemma
In 1996 they stood at #41 and #50 in England and Wales · Girls, 9 places apart; by 2025 they were #27 and #4867.
Grace · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Ella vs Gemma
In 1996 they stood at #56 and #50 in England and Wales · Girls, 6 places apart; by 2025 they were #46 and #4867.
Ella · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Jasmine vs Gemma
In 1996 they stood at #55 and #50 in England and Wales · Girls, 5 places apart; by 2025 they were #102 and #4867.
Jasmine · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
- Anna vs Gemma
In 1996 they stood at #47 and #50 in England and Wales · Girls, 3 places apart; by 2025 they were #142 and #4867.
Anna · Gemma · 30 shared years, 1996–2025 · Started together, ended far apart
Side by side
| Field | Finn | Theo |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| 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. | Gift of God. |
| Origin | Irish | Greek, via Theodore/Theodora |
| Pronunciation | /fɪn/ | /ˈθioʊ/ |
| Syllables | 1 | 1 |
| Common variants / nicknames | Not yet recorded | Teddy |
| Recorded regional usage | New South Wales, Australia, England and Wales, Northern Ireland, Scotland, Republic of Ireland, Norway, New Zealand | New South Wales, Australia, England and Wales, Northern Ireland, Scotland, Republic of Ireland, Norway, New Zealand |
| Most recent popularity observation | Republic of Ireland · Boys #15 (2025) | England and Wales · Boys #12 (2025) |
| Data Confidence | medium | high |
What the data shows
- Finn is recorded with a Irish origin, while Theo is recorded with a Greek, via Theodore/Theodora origin.
- Finn and Theo both have 1 syllable.
- Finn's recorded meaning differs from Theo's — see the table above for each.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ.
- The available evidence gives Finn a "medium" Data Confidence level and Theo a "high" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
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 #74 among boys in England and Wales, in 2025.
England and Wales · Boys
Theo
Popularity journey
First recorded1986
First recorded at #637 among boys in Norway in 1986 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded2001–2024
Highest recorded position: #4 among boys in Northern Ireland, in 2022 (recorded 2001–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #12 among boys in England and Wales, in 2025.
England and Wales · Boys