Eileen vs Sonia
Eileen and Soniacompared 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.
Norway · Girls
In 2025, Eileen was ranked #501 and Sonia #421 among girls in Norway.
Republic of Ireland · Girls
In 2025, Eileen was ranked #443 and Sonia #718 among girls in Republic of Ireland.
England and Wales · Girls
In 2024, Eileen was ranked #855 and Sonia #1160 among girls in England and Wales.
Eileen and Sonia over time
Eileen and Sonia appear together in 3 published lists, across 140 years of shared records. Eileen held the stronger position in more years in 2 of them, Sonia in 1.
The order between them changed and held in 2 of those lists — a change in that published list, never a claim that one name displaced the other.
Eileen reached its own highest recorded position earlier in 2 of those lists, Sonia 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.
- Repeatedly exchanged positions
Eileen and Sonia changed places 25 times in Norway · Girls between 1953 and 2025, ending at #501 and #421.
- Longest-running competitions
Eileen and Sonia were both ranked in Norway · Girls for 54 years, from 1953 to 2025, ending at #501 and #421.
List by list
Republic of Ireland · Girls57 shared years, 1964–2025
Eileen held the stronger position in 54 of those years, Sonia in 1.
Highest recorded here: Eileen #17 in 1964, Sonia #163 in 1981.
The order between them never changed and held in this list.
Most recent shared year, 2025: Eileen #443, Sonia #718.
Norway · Girls54 shared years, 1953–2025
Eileen held the stronger position in 34 of those years, Sonia in 20.
Highest recorded here: Eileen #224 in 1972, Sonia #276 in 1984.
The order changed in 2025: Sonia moved ahead. In 2024 they stood at #265 and #362; by 2025 that had become #501 and #421.
Most recent shared year, 2025: Eileen #501, Sonia #421.
England and Wales · Girls29 shared years, 1996–2024
Eileen held the stronger position in 3 of those years, Sonia in 26.
Highest recorded here: Eileen #855 in 2024, Sonia #296 in 1996.
The order changed in 2022: Eileen moved ahead. In 2021 they stood at #1069 and #667; by 2022 that had become #876 and #982.
Most recent shared year, 2024: Eileen #855, Sonia #1160.
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 | Eileen | Sonia |
|---|---|---|
| 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, NO | AU-NSW, GB-ENW, GB-NIR, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Girls #443 (2025) | Norway · Girls #421 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Eileen and Sonia both have 2 syllables.
- Both names have recorded usage in GB-ENW, GB-NIR, IE, NO.
How each name got here
Eileen
Popularity journey
First recorded1945
First recorded at #324 among girls in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1964–2025
Highest recorded position: #17 among girls in Republic of Ireland, in 1964 (recorded 1964–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #501 among girls in Norway, in 2025.
Norway · Girls
Sonia
Popularity journey
First recorded1953
First recorded at #437 among girls in Norway in 1953 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1967–1978
Highest recorded position: #50 among girls in New South Wales, Australia, in 1972 (recorded 1967–1978).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #421 among girls in Norway, in 2025.
Norway · Girls