Isobel vs Siun
Isobel and Siuncompared 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 · Girls
In 2017, Isobel was ranked #158 and Siun #145 among girls in Republic of Ireland.
Northern Ireland · Girls
In 2024, Isobel was ranked #212 and Siun #337 among girls in Northern Ireland.
Isobel and Siun over time
Isobel and Siun appear together in 1 published list, across 25 years of shared records. Isobel held the stronger position in more years in 1 of them, Siun in 0.
In none of those lists did their order change and stay changed.
Isobel reached its own highest recorded position earlier in 1 of those lists, and Siun 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.
List by list
Republic of Ireland · Girls25 shared years, 1982–2017
Isobel held the stronger position in 21 of those years, Siun in 3.
Highest recorded here: Isobel #81 in 2008, Siun #132 in 2015.
The order between them never changed and held in this list.
Most recent shared year, 2017: Isobel #158, Siun #145.
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 | Isobel | Siun |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | Not yet recorded | Not yet recorded |
| Origin | Not yet recorded | Not yet recorded |
| Pronunciation | Not yet recorded | |
| Syllables | 3 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE, NZ | GB-NIR, IE |
| Most recent popularity observation | Republic of Ireland · Girls #239 (2025) | Northern Ireland · Girls #337 (2024) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 60/100 |
| Data Confidence | medium | medium |
What the data shows
- Isobel has 3 syllables, compared with 1 for Siun.
- Both names have recorded usage in GB-NIR, IE.
How each name got here
Isobel
Popularity journey
First recorded1964
First recorded at #234 among girls in Republic of Ireland in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1996–2025
Highest recorded position: #50 among girls in England and Wales, in 2003 (recorded 1996–2025).
England and Wales · Girls
Most recent2025
Most recently recorded at #246 among girls in England and Wales, in 2025.
England and Wales · Girls
Siun
Popularity journey
First recorded1982
First recorded at #523 among girls in Republic of Ireland in 1982 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1982–2017
Highest recorded position: #132 among girls in Republic of Ireland, in 2015 (recorded 1982–2017).
Republic of Ireland · Girls
Most recent2024
Most recently recorded at #337 among girls in Northern Ireland, in 2024.
Northern Ireland · Girls