Bill vs Tadhg
Bill 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, Bill was ranked #676 and Tadhg #8 among boys in Republic of Ireland.
England and Wales · Boys
In 2024, Bill was ranked #2921 and Tadhg #406 among boys in England and Wales.
Bill and Tadhg over time
Bill and Tadhg appear together in 2 published lists, across 64 years of shared records. Tadhg held the stronger position in more years in 2 of them, Bill in 0.
The order between them changed and held in one of those lists — a change in that published list, never a claim that one name displaced the other.
Bill 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.
- Mirrored each other
Over 35 shared years in Republic of Ireland · Boys, Tadhg rose about as far as Bill fell — from #288 and #135 in 1991 to #676 and #8 in 2025.
- Longest-running competitions
Bill and Tadhg were both ranked in Republic of Ireland · Boys for 35 years, from 1991 to 2025, ending at #676 and #8.
List by list
Republic of Ireland · Boys35 shared years, 1991–2025
Bill held the stronger position in 0 of those years, Tadhg in 35.
Highest recorded here: Bill #203 in 1998, Tadhg #6 in 2024.
The order between them never changed and held in this list.
Most recent shared year, 2025: Bill #676, Tadhg #8.
England and Wales · Boys29 shared years, 1996–2024
Bill held the stronger position in 7 of those years, Tadhg in 20.
Highest recorded here: Bill #613 in 1997, Tadhg #406 in 2024.
The order changed in 2015: Tadhg moved ahead. In 2014 they stood at #1560 and #1630; by 2015 that had become #2020 and #996.
Most recent shared year, 2024: Bill #2921, Tadhg #406.
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.
Side by side
| Field | Bill | 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 | 1 | 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 | Republic of Ireland · Boys #676 (2025) | Republic of Ireland · Boys #8 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 95/100 | 94/100 |
| International familiarity (demonstration score) | 60/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Tadhg has a recorded origin (Irish); Bill does not have one recorded yet.
- Bill and Tadhg both have 1 syllable.
- A meaning is recorded for Tadhg; Bill doesn't have one written yet.
- Both names have recorded usage in GB-ENW, IE.
How each name got here
Bill
Popularity journey
First recorded1991
First recorded at #288 among boys in Republic of Ireland in 1991 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1991–2025
Highest recorded position: #203 among boys in Republic of Ireland, in 1998 (recorded 1991–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #676 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