Theo vs Tommy
Theo and Tommycompared 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, Theo was ranked #4 and Tommy #20 among boys in Scotland.
Northern Ireland · Boys
In 2024, Theo was ranked #5 and Tommy #20 among boys in Northern Ireland.
England and Wales · Boys
In 2025, Theo was ranked #12 and Tommy #44 among boys in England and Wales.
Norway · Boys
In 2024, Theo was ranked #17 and Tommy #503 among boys in Norway.
New Zealand · Boys
In 2023, Theo was ranked #19 and Tommy #68 among boys in New Zealand.
Republic of Ireland · Boys
In 2025, Theo was ranked #21 and Tommy #27 among boys in Republic of Ireland.
New South Wales, Australia · Boys
In 2025, Theo was ranked #32 and Tommy #97 among boys in New South Wales, Australia.
Theo and Tommy over time
Theo and Tommy appear together in 4 published lists, across 115 years of shared records. Theo held the stronger position in more years in 3 of them, Tommy in 1.
The order between them changed and held in 3 of those lists — a change in that published list, never a claim that one name displaced the other.
Tommy reached its own highest recorded position earlier in 3 of those lists, Theo in 1. 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 2003, Theo moved ahead of Tommy in England and Wales · Boys — #137 and #125 the year before became #126 and #129.
- Repeatedly exchanged positions
Theo and Tommy changed places 4 times in Northern Ireland · Boys between 2004 and 2024, ending at #5 and #20.
- Closest over the longest run
Across 30 shared years in England and Wales · Boys, Theo and Tommy averaged 39.6 places apart, ending at #12 and #44.
- Longest-running competitions
Theo and Tommy were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #12 and #44.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Boys within 2 years — Theo #9 in 2022, Tommy #22 in 2020.
List by list
Norway · Boys35 shared years, 1986–2024
Theo held the stronger position in 21 of those years, Tommy in 14.
Highest recorded here: Theo #17 in 2024, Tommy #34 in 1986.
The order changed in 2004: Theo moved ahead. In 2003 they stood at #201 and #185; by 2004 that had become #152 and #180.
Most recent shared year, 2024: Theo #17, Tommy #503.
England and Wales · Boys30 shared years, 1996–2025
Theo held the stronger position in 23 of those years, Tommy in 7.
Highest recorded here: Theo #9 in 2022, Tommy #22 in 2020.
The order changed in 2003: Theo moved ahead. In 2002 they stood at #137 and #125; by 2003 that had become #126 and #129.
Most recent shared year, 2025: Theo #12, Tommy #44.
Republic of Ireland · Boys30 shared years, 1988–2025
Theo held the stronger position in 8 of those years, Tommy in 21.
Highest recorded here: Theo #13 in 2024, Tommy #21 in 2023.
The order changed in 2018: Theo moved ahead. In 2017 they stood at #73 and #68; by 2018 that had become #62 and #69.
Most recent shared year, 2025: Theo #21, Tommy #27.
Northern Ireland · Boys20 shared years, 2004–2024
Theo held the stronger position in 18 of those years, Tommy in 1.
Highest recorded here: Theo #4 in 2022, Tommy #11 in 2023.
The order between them never changed and held in this list.
Most recent shared year, 2024: Theo #5, Tommy #20.
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 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
- 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
- Theo vs Arlo
Theo and Arlo 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 · Arlo · 27 shared years, 1999–2025 · Moved together in several countries
Other comparisons involving Tommy
Pairs where Tommy shares a published list with another name, each measured inside one registrar's own list.
- Aksel vs Tommy
Over 80 shared years in Norway · Boys, Aksel rose about as far as Tommy fell — from #174 and #268 in 1945 to #20 and #503 in 2024.
Aksel · Tommy · 80 shared years, 1945–2024 · Mirrored each other
- Daniel vs Tommy
Over 80 shared years in Norway · Boys, Daniel rose about as far as Tommy fell — from #280 and #268 in 1945 to #61 and #503 in 2024.
Daniel · Tommy · 80 shared years, 1945–2024 · Mirrored each other
- Emil vs Tommy
Over 80 shared years in Norway · Boys, Emil rose about as far as Tommy fell — from #271 and #268 in 1945 to #2 and #503 in 2024.
Emil · Tommy · 80 shared years, 1945–2024 · Mirrored each other
- Tommy vs Even
Over 80 shared years in Norway · Boys, Even rose about as far as Tommy fell — from #268 and #180 in 1945 to #503 and #30 in 2024.
Tommy · Even · 80 shared years, 1945–2024 · Mirrored each other
Side by side
| Field | Theo | Tommy |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | Gift of God. | Not yet recorded |
| Origin | Greek, via Theodore/Theodora | Not yet recorded |
| Pronunciation | /ˈθioʊ/ | |
| Syllables | 1 | 2 |
| Common variants / nicknames | Teddy | 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, NZ |
| Most recent popularity observation | England and Wales · Boys #12 (2025) | Republic of Ireland · Boys #27 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 95/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | high | medium |
What the data shows
- Theo has a recorded origin (Greek, via Theodore/Theodora); Tommy does not have one recorded yet.
- Theo has 1 syllable, compared with 2 for Tommy.
- A meaning is recorded for Theo; Tommy doesn't have one written yet.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ.
- The available evidence gives Theo a "high" Data Confidence level and Tommy a "medium" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
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
Tommy
Popularity journey
First recorded1945
First recorded at #268 among boys in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Boys
Highest recorded1999–2024
Highest recorded position: #11 among boys in Northern Ireland, in 2023 (recorded 1999–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #44 among boys in England and Wales, in 2025.
England and Wales · Boys