Sylvester vs Tadhg
Sylvester 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 1992, Sylvester was ranked #298 and Tadhg #121 among boys in Republic of Ireland.
England and Wales · Boys
In 2024, Sylvester was ranked #2443 and Tadhg #406 among boys in England and Wales.
Sylvester and Tadhg over time
Sylvester and Tadhg appear together in 2 published lists, across 44 years of shared records. Tadhg held the stronger position in more years in 2 of them, Sylvester 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.
Sylvester reached its own highest recorded position earlier in 2 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.
- Repeatedly exchanged positions
Sylvester and Tadhg changed places 5 times in Republic of Ireland · Boys between 1965 and 1992, ending at #298 and #121.
List by list
England and Wales · Boys27 shared years, 1996–2024
Sylvester held the stronger position in 1 of those years, Tadhg in 26.
Highest recorded here: Sylvester #1290 in 2021, Tadhg #406 in 2024.
The order changed in 1997: Tadhg moved ahead. In 1996 they stood at #2020 and #2357; by 1997 that had become #2859 and #1174.
Most recent shared year, 2024: Sylvester #2443, Tadhg #406.
Republic of Ireland · Boys17 shared years, 1965–1992
Sylvester held the stronger position in 4 of those years, Tadhg in 10.
Highest recorded here: Sylvester #148 in 1965, Tadhg #121 in 1992.
The order changed in 1973: Tadhg moved ahead. In 1972 they stood at #238 and #254; by 1973 that had become #215 and #215.
Most recent shared year, 1992: Sylvester #298, Tadhg #121.
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 | Sylvester | 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 | 3 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, IE | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | England and Wales · Boys #2443 (2024) | Republic of Ireland · Boys #8 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 70/100 | 94/100 |
| International familiarity (demonstration score) | 60/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Tadhg has a recorded origin (Irish); Sylvester does not have one recorded yet.
- Sylvester has 3 syllables, compared with 1 for Tadhg.
- A meaning is recorded for Tadhg; Sylvester doesn't have one written yet.
- Both names have recorded usage in GB-ENW, IE.
How each name got here
Sylvester
Popularity journey
First recorded1964
First recorded at #181 among boys in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1964–1992
Highest recorded position: #148 among boys in Republic of Ireland, in 1965 (recorded 1964–1992).
Republic of Ireland · Boys
Most recent2024
Most recently recorded at #2443 among boys in England and Wales, in 2024.
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 #8 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys