Dea vs Siobhán
Dea and Siobháncompared 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.
England and Wales · Girls
In 2024, Dea was ranked #2000 and Siobhán #3015 among girls in England and Wales.
Dea and Siobhán over time
Dea and Siobhán appear together in 1 published list, across 26 years of shared records. Siobhán held the stronger position in more years in 1 of them, Dea 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.
Siobhán reached its own highest recorded position earlier in 1 of those lists, and Dea 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
England and Wales · Girls26 shared years, 1999–2024
Dea held the stronger position in 9 of those years, Siobhán in 15.
Highest recorded here: Dea #1525 in 2023, Siobhán #209 in 1999.
The order changed in 2018: Dea moved ahead. In 2017 they stood at #1817 and #1817; by 2018 that had become #1788 and #4684.
Most recent shared year, 2024: Dea #2000, Siobhán #3015.
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 | Dea | Siobhán |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | female | female |
| Meaning | Not yet recorded | Shares the meaning of Joan/Jehanne: commonly interpreted as 'God is gracious'. |
| Origin | Not yet recorded | Irish |
| Pronunciation | Not yet recorded | /ʃɪˈvɔːn/ |
| Syllables | 1 | 1 |
| Common variants / nicknames | Not yet recorded | Chevonne, Shivaun |
| Recorded regional usage | GB-ENW, IE | GB-ENW, GB-NIR, IE |
| Most recent popularity observation | England and Wales · Girls #2000 (2024) | Republic of Ireland #90 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 95/100 | 82/100 |
| International familiarity (demonstration score) | 60/100 | 100/100 |
| Data Confidence | medium | high |
What the data shows
- Siobhán has a recorded origin (Irish); Dea does not have one recorded yet.
- Dea and Siobhán both have 1 syllable.
- A meaning is recorded for Siobhán; Dea doesn't have one written yet.
- Both names have recorded usage in GB-ENW, IE.
- The available evidence gives Dea a "medium" Data Confidence level and Siobhán a "high" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Dea
Popularity journey
First recorded1999
First recorded at #2444 among girls in England and Wales in 1999 — the earliest year that source publishes this name, not necessarily the earliest it was used.
England and Wales · Girls
Most recent2024
Most recently recorded at #2000 among girls in England and Wales, in 2024.
England and Wales · Girls
Siobhán
Popularity journey
First recorded1964
First recorded at #35 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 recorded1964–2025
Highest recorded position: #15 among girls in Republic of Ireland, in 1971 (recorded 1964–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #90 in Republic of Ireland, in 2025.
Republic of Ireland