Iarlaith vs Naoise
Iarlaith and Naoisecompared 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, Iarlaith was ranked #85 and Naoise #88 among boys in Republic of Ireland.
Northern Ireland · Boys
In 2024, Iarlaith was ranked #136 and Naoise #278 among boys in Northern Ireland.
Iarlaith and Naoise over time
Iarlaith and Naoise appear together in 1 published list, across 23 years of shared records. Iarlaith held the stronger position in more years in 1 of them, Naoise in 0.
In none of those lists did their order change and stay changed.
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.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Boys within 2 years — Iarlaith #85 in 2025, Naoise #88 in 2025.
List by list
Republic of Ireland · Boys23 shared years, 2001–2025
Iarlaith held the stronger position in 13 of those years, Naoise in 10.
Highest recorded here: Iarlaith #85 in 2025, Naoise #88 in 2025.
The order between them never changed and held in this list.
Most recent shared year, 2025: Iarlaith #85, Naoise #88.
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 | Iarlaith | Naoise |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | male | Used for both boys and girls |
| 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-NIR, IE | GB-ENW, GB-NIR, IE |
| Most recent popularity observation | Republic of Ireland · Boys #85 (2025) | Republic of Ireland · Boys #88 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 76/100 | 88/100 |
| International familiarity (demonstration score) | 60/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Iarlaith and Naoise both have 2 syllables.
- Both names have recorded usage in GB-NIR, IE.
How each name got here
Iarlaith
Popularity journey
First recorded1991
First recorded at #324 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: #85 among boys in Republic of Ireland, in 2025 (recorded 1991–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #85 among boys in Republic of Ireland, in 2025.
Republic of Ireland · Boys
Naoise
Popularity journey
First recorded1970
First recorded at #278 among boys in Republic of Ireland in 1970 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Boys
Highest recorded1970–2025
Highest recorded position: #88 among boys in Republic of Ireland, in 2025 (recorded 1970–2025).
Republic of Ireland · Boys
Most recent2025
Most recently recorded at #118 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls