Calvin vs Tadhg
Calvin and Tadhgcompared 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.
Republic of Ireland · Boys
In 2025, Calvin was ranked #211 and Tadhg #8 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Calvin was ranked #278 and Tadhg #99 among boys in Northern Ireland.
Scotland · Boys
In 2024, Calvin was ranked #191 and Tadhg #307 among boys in Scotland.
England and Wales · Boys
In 2025, Calvin was ranked #771 and Tadhg #412 among boys in England and Wales.
Calvin and Tadhg over time
Calvin and Tadhg appear together in 3 published lists, across 92 years of shared records. Calvin held the stronger position in more years in 2 of them, Tadhg in 1.
The order between them changed and held in 2 of those lists — a change in that published list, never a claim that one name displaced the other.
Calvin reached its own highest recorded position earlier in 3 of those lists, and Tadhg 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.
- Mirrored each other
Over 20 shared years in Northern Ireland · Boys, Tadhg rose about as far as Calvin fell — from #151 and #280 in 2001 to #278 and #99 in 2024.
- Longest-running competitions
Calvin and Tadhg were both ranked in England and Wales · Boys for 30 years, from 1996 to 2025, ending at #771 and #412.
List by list
Republic of Ireland · Boys42 shared years, 1983–2025
Calvin held the stronger position in 1 of those years, Tadhg in 41.
Highest recorded here: Calvin #116 in 1997, Tadhg #6 in 2024.
The order between them never changed and held in this list.
Most recent shared year, 2025: Calvin #211, Tadhg #8.
England and Wales · Boys30 shared years, 1996–2025
Calvin held the stronger position in 25 of those years, Tadhg in 5.
Highest recorded here: Calvin #204 in 1998, Tadhg #406 in 2024.
The order changed in 2021: Tadhg moved ahead. In 2020 they stood at #492 and #551; by 2021 that had become #641 and #457.
Most recent shared year, 2025: Calvin #771, Tadhg #412.
Northern Ireland · Boys20 shared years, 2001–2024
Calvin held the stronger position in 13 of those years, Tadhg in 6.
Highest recorded here: Calvin #139 in 2008, Tadhg #99 in 2024.
The order changed in 2017: Tadhg moved ahead. In 2016 they stood at #195 and #232; by 2017 that had become #229 and #229.
Most recent shared year, 2024: Calvin #278, Tadhg #99.
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 Tadhg
Pairs where Tadhg shares a published list with another name, each measured inside one registrar's own list.
- George vs Tadhg
Over 59 shared years in Republic of Ireland · Boys, Tadhg rose about as far as George fell — from #56 and #222 in 1965 to #112 and #8 in 2025.
George · Tadhg · 59 shared years, 1965–2025 · Mirrored each other
- Tadhg vs Jonathan
Over 59 shared years in Republic of Ireland · Boys, Tadhg rose about as far as Jonathan fell — from #222 and #137 in 1965 to #8 and #223 in 2025.
Tadhg · Jonathan · 59 shared years, 1965–2025 · Mirrored each other
- Shane vs Tadhg
Over 59 shared years in Republic of Ireland · Boys, Tadhg rose about as far as Shane fell — from #65 and #222 in 1965 to #152 and #8 in 2025.
Shane · Tadhg · 59 shared years, 1965–2025 · Mirrored each other
- Tadhg vs Dean
Over 58 shared years in Republic of Ireland · Boys, Tadhg rose about as far as Dean fell — from #245 and #265 in 1967 to #8 and #432 in 2025.
Tadhg · Dean · 58 shared years, 1967–2025 · Mirrored each other
Side by side
| Field | Calvin | Tadhg |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | male | male |
| Meaning | Not yet recorded | Traditionally interpreted as 'poet'. |
| Origin | Not yet recorded | Irish |
| Pronunciation | Not yet recorded | /ˈtˠəiɡ/ |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Republic of Ireland · Boys #211 (2025) | Republic of Ireland · Boys #8 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 88/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Tadhg has a recorded origin (Irish); Calvin does not have one recorded yet.
- Calvin has 2 syllables, compared with 1 for Tadhg.
- A meaning is recorded for Tadhg; Calvin doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Calvin
Popularity journey
First recorded1983
First recorded at #330 among boys in Republic of Ireland in 1983 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1997–2024
Highest recorded position: #99 among boys in Northern Ireland, in 1998 (recorded 1997–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #771 among boys in England and Wales, in 2025.
England and Wales · Boys
Tadhg
Popularity journey
First recorded1965
First recorded at #222 among boys in Republic of Ireland in 1965 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1965–2025
Highest recorded position: #6 among boys in Republic of Ireland, in 2024 (recorded 1965–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #412 among boys in England and Wales, in 2025.
England and Wales · Boys