Sean vs Tadhg
Sean 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, Sean was ranked #141 and Tadhg #8 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Sean was ranked #48 and Tadhg #99 among boys in Northern Ireland.
Scotland · Boys
In 2024, Sean was ranked #234 and Tadhg #307 among boys in Scotland.
England and Wales · Boys
In 2024, Sean was ranked #638 and Tadhg #406 among boys in England and Wales.
Sean and Tadhg over time
Sean and Tadhg appear together in 3 published lists, across 109 years of shared records. Sean held the stronger position in more years in 3 of them, Tadhg in 0.
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.
Sean 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.
- One took the other's place near the top
In Republic of Ireland · Boys, Tadhg moved into the top 50 at #20 in 2018 as Sean fell out of it to #74, having been #5 the year before.
- One moved ahead of the other
In 2018, Tadhg moved ahead of Sean in Republic of Ireland · Boys — #5 and #28 the year before became #74 and #20.
- Longest-running competitions
Sean and Tadhg were both ranked in Republic of Ireland · Boys for 59 years, from 1965 to 2025, ending at #141 and #8.
List by list
Republic of Ireland · Boys59 shared years, 1965–2025
Sean held the stronger position in 51 of those years, Tadhg in 8.
Highest recorded here: Sean #1 in 1997, Tadhg #6 in 2024.
The order changed in 2018: Tadhg moved ahead. In 2017 they stood at #5 and #28; by 2018 that had become #74 and #20.
Most recent shared year, 2025: Sean #141, Tadhg #8.
England and Wales · Boys29 shared years, 1996–2024
Sean held the stronger position in 27 of those years, Tadhg in 2.
Highest recorded here: Sean #49 in 1996, Tadhg #406 in 2024.
The order changed in 2023: Tadhg moved ahead. In 2022 they stood at #577 and #600; by 2023 that had become #574 and #419.
Most recent shared year, 2024: Sean #638, Tadhg #406.
Northern Ireland · Boys21 shared years, 2001–2024
Sean held the stronger position in 21 of those years, Tadhg in 0.
Highest recorded here: Sean #13 in 2001, Tadhg #81 in 2023.
The order between them never changed and held in this list.
Most recent shared year, 2024: Sean #48, 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 Sean
Pairs where Sean shares a published list with another name, each measured inside one registrar's own list.
- Sean vs Kenneth
In 1964 they stood at #38 and #41 in Republic of Ireland · Boys, 3 places apart; by 2024 they were #123 and #785.
Sean · Kenneth · 60 shared years, 1964–2024 · Started together, ended far apart
- Sean vs Henry
In 1996 they stood at #49 and #58 in England and Wales · Boys, 9 places apart; by 2024 they were #638 and #14.
Sean · Henry · 29 shared years, 1996–2024 · Started together, ended far apart
- Sean vs Edward
In 1996 they stood at #49 and #45 in England and Wales · Boys, 4 places apart; by 2024 they were #638 and #31.
Sean · Edward · 29 shared years, 1996–2024 · Started together, ended far apart
- John vs Sean
In 1996 they stood at #46 and #49 in England and Wales · Boys, 3 places apart; by 2024 they were #164 and #638.
John · Sean · 29 shared years, 1996–2024 · Started together, ended far apart
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
Other pairs with the same kind of relationship
Pairs that qualify under the same rule as this one — one took the other's place near the top.
- Sean vs Adam
In Republic of Ireland · Boys, Adam moved into the top 50 at #9 in 2018 as Sean fell out of it to #74, having been #5 the year before.
Sean · Adam · 61 shared years, 1965–2025 · One took the other's place near the top
- Charlie vs Oisin
In Republic of Ireland · Boys, Charlie moved into the top 50 at #10 in 2018 as Oisin fell out of it to #247, having been #11 the year before.
Charlie · Oisin · 33 shared years, 1983–2025 · One took the other's place near the top
- Sean vs Charlie
In Republic of Ireland · Boys, Charlie moved into the top 50 at #10 in 2018 as Sean fell out of it to #74, having been #5 the year before.
Sean · Charlie · 33 shared years, 1983–2025 · One took the other's place near the top
- Sean vs Liam
In Republic of Ireland · Boys, Liam moved into the top 50 at #11 in 2018 as Sean fell out of it to #74, having been #5 the year before.
Sean · Liam · 62 shared years, 1964–2025 · One took the other's place near the top
Other pairs from Republic of Ireland lists
Pairs measured inside Republic of 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.
- Grace vs Sinead
In 1964 they stood at #118 and #109 in Republic of Ireland · Girls, 9 places apart; by 2022 they were #2 and #905.
Grace · Sinead · 58 shared years, 1964–2022 · Started together, ended far apart
- Grace vs Therese
In 1964 they stood at #118 and #127 in Republic of Ireland · Girls, 9 places apart; by 2015 they were #8 and #896.
Grace · Therese · 51 shared years, 1964–2015 · Started together, ended far apart
- Sarah vs Lorraine
In 1964 they stood at #46 and #47 in Republic of Ireland · Girls, 1 places apart; by 2018 they were #21 and #896.
Sarah · Lorraine · 50 shared years, 1964–2018 · Started together, ended far apart
- Grace vs Pamela
In 1964 they stood at #118 and #116 in Republic of Ireland · Girls, 2 places apart; by 2017 they were #3 and #873.
Grace · Pamela · 46 shared years, 1964–2017 · 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.
- Lily vs Rachael
In 1996 they stood at #85 and #77 in England and Wales · Girls, 8 places apart; by 2024 they were #3 and #3318.
Lily · Rachael · 29 shared years, 1996–2024 · Started together, ended far apart
- Daisy vs Rachael
In 1996 they stood at #71 and #77 in England and Wales · Girls, 6 places apart; by 2024 they were #18 and #3318.
Daisy · Rachael · 29 shared years, 1996–2024 · Started together, ended far apart
- Rosie vs Rachael
In 1996 they stood at #69 and #77 in England and Wales · Girls, 8 places apart; by 2024 they were #24 and #3318.
Rosie · Rachael · 29 shared years, 1996–2024 · Started together, ended far apart
- Henry vs Ross
In 1996 they stood at #58 and #68 in England and Wales · Boys, 10 places apart; by 2024 they were #14 and #3254.
Henry · Ross · 29 shared years, 1996–2024 · Started together, ended far apart
Side by side
| Field | Sean | Tadhg |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| Gender usage | male | male |
| Meaning | The Irish form of John, ultimately carrying the meaning 'Yahweh is gracious' via its Hebrew ancestry. | Traditionally interpreted as 'poet'. |
| Origin | Irish, Anglicised form of Sean, via Hebrew John | Irish |
| Pronunciation | /ʃɔːn/ | /ˈtˠəiɡ/ |
| 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 | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Republic of Ireland · Boys #141 (2025) | Republic of Ireland · Boys #8 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | 90/100 |
| Spelling simplicity (demonstration score) | 95/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Sean is recorded with a Irish, Anglicised form of Sean, via Hebrew John origin, while Tadhg is recorded with a Irish origin.
- Sean and Tadhg both have 1 syllable.
- Sean's recorded meaning differs from Tadhg's — see the table above for each.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Sean
Popularity journey
First recorded1963
First recorded at #82 among boys in New South Wales, Australia in 1963 — the earliest year that source publishes this name, not necessarily the earliest it was used.
New South Wales, Australia · Boys
Highest recorded1964–2025
Highest recorded position: #1 among boys in Republic of Ireland, in 1997 (recorded 1964–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #141 among boys in Republic of Ireland, in 2025.
Republic of Ireland · 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 #8 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys