Cormac vs Tiarnan
Cormac 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, Cormac was ranked #78 and Tiarnan #125 among boys in Northern Ireland.
Republic of Ireland · Boys
In 2025, Cormac was ranked #141 and Tiarnan #577 among boys in Republic of Ireland.
Scotland · Boys
In 2024, Cormac was ranked #330 and Tiarnan #619 among boys in Scotland.
England and Wales · Boys
In 2023, Cormac was ranked #1207 and Tiarnan #4107 among boys in England and Wales.
Cormac and Tiarnan over time
Cormac and Tiarnan appear together in 3 published lists, across 79 years of shared records. Cormac held the stronger position in more years in 3 of them, Tiarnan in 0.
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, Cormac 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.
- Closest over the longest run
Across 28 shared years in Northern Ireland · Boys, Cormac and Tiarnan averaged 55.0 places apart, ending at #78 and #125.
- Longest-running competitions
Cormac and Tiarnan were both ranked in Republic of Ireland · Boys for 35 years, from 1987 to 2025, ending at #141 and #577.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Boys within 2 years — Cormac #39 in 2005, Tiarnan #180 in 2007.
List by list
Republic of Ireland · Boys35 shared years, 1987–2025
Cormac held the stronger position in 35 of those years, Tiarnan in 0.
Highest recorded here: Cormac #39 in 2005, Tiarnan #180 in 2007.
The order between them never changed and held in this list.
Most recent shared year, 2025: Cormac #141, Tiarnan #577.
Northern Ireland · Boys28 shared years, 1997–2024
Cormac held the stronger position in 23 of those years, Tiarnan in 5.
Highest recorded here: Cormac #37 in 2005, Tiarnan #62 in 2000.
The order between them never changed and held in this list.
Most recent shared year, 2024: Cormac #78, Tiarnan #125.
England and Wales · Boys16 shared years, 1996–2023
Cormac held the stronger position in 16 of those years, Tiarnan in 0.
Highest recorded here: Cormac #417 in 2002, Tiarnan #1027 in 1999.
The order between them never changed and held in this list.
Most recent shared year, 2023: Cormac #1207, 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 | Cormac | 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 | GB-ENW, GB-NIR, GB-SCT, IE | GB-ENW, GB-NIR, GB-SCT, IE |
| Most recent popularity observation | Republic of Ireland · Boys #141 (2025) | Republic of Ireland · Boys #577 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 82/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Cormac and Tiarnan both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Cormac
Popularity journey
First recorded1964
First recorded at #87 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 recorded1997–2024
Highest recorded position: #37 among boys in Northern Ireland, in 2005 (recorded 1997–2024).
Northern Ireland · Boys
Most recent2025
Most recently recorded at #141 among boys in Republic of Ireland, in 2025.
Republic of Ireland · 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