Kayleigh vs Siena
Kayleigh and Sienacompared 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 · Girls
In 2014, Kayleigh was ranked #156 and Siena #439 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2024, Kayleigh was ranked #171 and Siena #898 among girls in Republic of Ireland.
England and Wales · Girls
In 2025, Kayleigh was ranked #1639 and Siena #634 among girls in England and Wales.
Scotland · Girls
In 2024, Kayleigh was ranked #790 and Siena #638 among girls in Scotland.
Kayleigh and Siena over time
Kayleigh and Siena appear together in 2 published lists, across 44 years of shared records. Kayleigh held the stronger position in more years in 2 of them, Siena 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.
Kayleigh reached its own highest recorded position earlier in 1 of those lists, and Siena 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.
- Longest-running competitions
Kayleigh and Siena were both ranked in England and Wales · Girls for 30 years, from 1996 to 2025, ending at #1639 and #634.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Girls within 2 years — Kayleigh #58 in 2005, Siena #461 in 2005.
List by list
England and Wales · Girls30 shared years, 1996–2025
Kayleigh held the stronger position in 17 of those years, Siena in 13.
Highest recorded here: Kayleigh #50 in 1997, Siena #415 in 2013.
The order changed in 2013: Siena moved ahead. In 2012 they stood at #312 and #536; by 2013 that had become #421 and #415.
Most recent shared year, 2025: Kayleigh #1639, Siena #634.
Republic of Ireland · Girls14 shared years, 2005–2024
Kayleigh held the stronger position in 14 of those years, Siena in 0.
Highest recorded here: Kayleigh #58 in 2005, Siena #461 in 2005.
The order between them never changed and held in this list.
Most recent shared year, 2024: Kayleigh #171, Siena #898.
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 | Kayleigh | Siena |
|---|---|---|
| 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 | 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 · Girls #207 (2025) | England and Wales · Girls #634 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 53/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Kayleigh and Siena both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Kayleigh
Popularity journey
First recorded1985
First recorded at #519 among girls in Republic of Ireland in 1985 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1985–2025
Highest recorded position: #45 among girls in Republic of Ireland, in 1997 (recorded 1985–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #1639 among girls in England and Wales, in 2025.
England and Wales · Girls
Siena
Popularity journey
First recorded1996
First recorded at #1646 among girls in England and Wales in 1996 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Highest recorded1996–2025
Highest recorded position: #415 among girls in England and Wales, in 2013 (recorded 1996–2025).
England and Wales · Girls
Most recent2025
Most recently recorded at #634 among girls in England and Wales, in 2025.
England and Wales · Girls