Aidan vs Tiarnan
Aidan 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.
Republic of Ireland · Boys
In 2025, Aidan was ranked #82 and Tiarnan #577 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Aidan was ranked #136 and Tiarnan #125 among boys in Northern Ireland.
Scotland · Boys
In 2024, Aidan was ranked #155 and Tiarnan #619 among boys in Scotland.
England and Wales · Boys
In 2023, Aidan was ranked #243 and Tiarnan #4107 among boys in England and Wales.
Aidan and Tiarnan over time
Aidan and Tiarnan appear together in 3 published lists, across 79 years of shared records. Aidan held the stronger position in more years in 3 of them, Tiarnan 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.
Tiarnan reached its own highest recorded position earlier in 3 of those lists, and Aidan 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 moved ahead of the other
In 2024, Tiarnan moved ahead of Aidan in Northern Ireland · Boys — #108 and #169 the year before became #136 and #125.
- Repeatedly exchanged positions
Aidan and Tiarnan changed places 5 times in Northern Ireland · Boys between 1997 and 2024, ending at #136 and #125.
- Closest over the longest run
Across 28 shared years in Northern Ireland · Boys, Aidan and Tiarnan averaged 59.4 places apart, ending at #136 and #125.
- Longest-running competitions
Aidan and Tiarnan were both ranked in Republic of Ireland · Boys for 35 years, from 1987 to 2025, ending at #82 and #577.
List by list
Republic of Ireland · Boys35 shared years, 1987–2025
Aidan held the stronger position in 35 of those years, Tiarnan in 0.
Highest recorded here: Aidan #40 in 2011, Tiarnan #180 in 2007.
The order between them never changed and held in this list.
Most recent shared year, 2025: Aidan #82, Tiarnan #577.
Northern Ireland · Boys28 shared years, 1997–2024
Aidan held the stronger position in 24 of those years, Tiarnan in 4.
Highest recorded here: Aidan #43 in 2011, Tiarnan #62 in 2000.
The order changed in 2024: Tiarnan moved ahead. In 2023 they stood at #108 and #169; by 2024 that had become #136 and #125.
Most recent shared year, 2024: Aidan #136, Tiarnan #125.
England and Wales · Boys16 shared years, 1996–2023
Aidan held the stronger position in 16 of those years, Tiarnan in 0.
Highest recorded here: Aidan #67 in 2002, Tiarnan #1027 in 1999.
The order between them never changed and held in this list.
Most recent shared year, 2023: Aidan #243, 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.
Side by side
| Field | Aidan | 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, GB-SCT, IE, NZ | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Republic of Ireland · Boys #82 (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
- Aidan and Tiarnan both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Aidan
Popularity journey
First recorded1964
First recorded at #37 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 recorded1964–2025
Highest recorded position: #33 among boys in Republic of Ireland, in 1965 (recorded 1964–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #265 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