Olivia vs Siw
Olivia and Siwcompared 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 1998, Olivia was ranked #217 and Siw #418 among girls in Norway.
Olivia and Siw over time
Olivia and Siw appear together in 1 published list, across 16 years of shared records. Siw held the stronger position in more years in 1 of them, Olivia 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.
Siw reached its own highest recorded position earlier in 1 of those lists, and Olivia 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
Norway · Girls16 shared years, 1964–1998
Olivia held the stronger position in 5 of those years, Siw in 11.
Highest recorded here: Olivia #217 in 1998, Siw #90 in 1964.
The order changed in 1994: Olivia moved ahead. In 1993 they stood at #281 and #274; by 1994 that had become #265 and #373.
Most recent shared year, 1998: Olivia #217, Siw #418.
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 | Olivia | Siw |
|---|---|---|
| Record type | Editorially researched profile | Official statistical record (evidence-only) |
| Gender usage | female | female |
| Meaning | Commonly interpreted as 'olive tree' or 'symbol of peace'. | Not yet recorded |
| Origin | Latin | Not yet recorded |
| Pronunciation | /əˈlɪviə/ | |
| Syllables | 3 | 1 |
| Common variants / nicknames | Olivea, Liv, Livvy, Oliwia | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | NO |
| Most recent popularity observation | Norway · Girls #2 (2025) | Norway · Girls #418 (1998) |
| Pronunciation clarity (demonstration score) | 90/100 | Not yet recorded |
| Spelling simplicity (demonstration score) | 88/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 40/100 |
| Data Confidence | high | medium |
What the data shows
- Olivia has a recorded origin (Latin); Siw does not have one recorded yet.
- Olivia has 3 syllables, compared with 1 for Siw.
- A meaning is recorded for Olivia; Siw doesn't have one written yet.
- Both names have recorded usage in NO.
- The available evidence gives Olivia a "high" Data Confidence level and Siw a "medium" level — this reflects how complete and corroborated the underlying evidence is, not a judgement of either name.
How each name got here
Olivia
Popularity journey
First recorded1964
First recorded at #488 among girls in Norway in 1964 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1996–2024
Highest recorded position: #1 among girls in England and Wales, in 2008 (recorded 1996–2024).
England and Wales · Girls
Most recent2025
Most recently recorded at #3 among girls in New South Wales, Australia, in 2025.
New South Wales, Australia · Girls
Siw
Popularity journey
First recorded1956
First recorded at #455 among girls in Norway in 1956 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1956–1998
Highest recorded position: #61 among girls in Norway, in 1969 (recorded 1956–1998).
Norway · Girls
Most recent1998
Most recently recorded at #418 among girls in Norway, in 1998.
Norway · Girls