Denis vs Tiarnan
Denis and Tiarnancompared 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.
Northern Ireland · Boys
In 2024, Denis was ranked #305 and Tiarnan #125 among boys in Northern Ireland.
Republic of Ireland · Boys
In 2025, Denis was ranked #232 and Tiarnan #577 among boys in Republic of Ireland.
England and Wales · Boys
In 2023, Denis was ranked #396 and Tiarnan #4107 among boys in England and Wales.
Denis and Tiarnan over time
Denis and Tiarnan appear together in 3 published lists, across 68 years of shared records. Denis held the stronger position in more years in 2 of them, Tiarnan in 1.
In none of those lists did their order change and stay changed.
Tiarnan reached its own highest recorded position earlier in 2 of those lists, Denis 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.
- Longest-running competitions
Denis and Tiarnan were both ranked in Republic of Ireland · Boys for 35 years, from 1987 to 2025, ending at #232 and #577.
List by list
Republic of Ireland · Boys35 shared years, 1987–2025
Denis held the stronger position in 35 of those years, Tiarnan in 0.
Highest recorded here: Denis #68 in 1990, Tiarnan #180 in 2007.
The order between them never changed and held in this list.
Most recent shared year, 2025: Denis #232, Tiarnan #577.
Northern Ireland · Boys17 shared years, 1998–2024
Denis held the stronger position in 0 of those years, Tiarnan in 17.
Highest recorded here: Denis #231 in 2011, Tiarnan #62 in 2000.
The order between them never changed and held in this list.
Most recent shared year, 2024: Denis #305, Tiarnan #125.
England and Wales · Boys16 shared years, 1996–2023
Denis held the stronger position in 16 of those years, Tiarnan in 0.
Highest recorded here: Denis #270 in 2017, Tiarnan #1027 in 1999.
The order between them never changed and held in this list.
Most recent shared year, 2023: Denis #396, Tiarnan #4107.
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 Denis
Pairs where Denis shares a published list with another name, each measured inside one registrar's own list.
- Adrian vs Denis
Adrian and Denis changed places 16 times in Republic of Ireland · Boys between 1964 and 2025, ending at #348 and #232.
Adrian · Denis · 62 shared years, 1964–2025 · Repeatedly exchanged positions
- Timothy vs Denis
Timothy and Denis changed places 16 times in Republic of Ireland · Boys between 1964 and 2025, ending at #329 and #232.
Timothy · Denis · 62 shared years, 1964–2025 · Repeatedly exchanged positions
- Richard vs Denis
Richard and Denis changed places 12 times in Republic of Ireland · Boys between 1964 and 2025, ending at #232 and #232.
Richard · Denis · 62 shared years, 1964–2025 · Repeatedly exchanged positions
- John vs Denis
Both reached their highest recorded position in Republic of Ireland · Boys within 2 years — John #1 in 1964, Denis #21 in 1964.
John · Denis · 62 shared years, 1964–2025 · Peaked in the same years
Side by side
| Field | Denis | Tiarnan |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | male | male |
| Meaning | Not yet recorded | Not yet recorded |
| Origin | Not yet recorded | Not yet recorded |
| Pronunciation | Not yet recorded | Not yet recorded |
| Syllables | 2 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, IE, NO, NZ | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Republic of Ireland · Boys #232 (2025) | Republic of Ireland · Boys #577 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 94/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Denis and Tiarnan both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Denis
Popularity journey
First recorded1952
First recorded at #65 among boys in New South Wales, Australia in 1952 — 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: #21 among boys in Republic of Ireland, in 1964 (recorded 1964–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #484 among boys in England and Wales, in 2025.
England and Wales · Boys
Tiarnan
Popularity journey
First recorded1987
First recorded at #272 among boys in Republic of Ireland in 1987 — 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: #62 among boys in Northern Ireland, in 2000 (recorded 1997–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #577 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys