Sigrunn vs Thea
Sigrunn and Theacompared 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 1985, Sigrunn was ranked #635 and Thea #121 among girls in Norway.
Sigrunn and Thea over time
Sigrunn and Thea appear together in 1 published list, across 15 years of shared records. Sigrunn held the stronger position in more years in 1 of them, Thea 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.
Sigrunn reached its own highest recorded position earlier in 1 of those lists, and Thea 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 · Girls15 shared years, 1950–1985
Sigrunn held the stronger position in 8 of those years, Thea in 7.
Highest recorded here: Sigrunn #152 in 1952, Thea #121 in 1985.
The order changed in 1974: Thea moved ahead. In 1973 they stood at #462 and #508; by 1974 that had become #577 and #262.
Most recent shared year, 1985: Sigrunn #635, Thea #121.
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 | Sigrunn | Thea |
|---|---|---|
| Record type | Official statistical record (evidence-only) | Editorially researched profile |
| Gender usage | female | female |
| Meaning | Not yet recorded | A short form of Dorothea, Theodora, Theresa and other similar-sounding Greek-rooted names. |
| Origin | Not yet recorded | Greek (via Germanic/Scandinavian transmission) |
| Pronunciation | Not yet recorded | /ˈteː.a/ |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | NO | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Norway · Girls #635 (1985) | Norway · Girls #50 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 82/100 | 95/100 |
| International familiarity (demonstration score) | 40/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Thea has a recorded origin (Greek (via Germanic/Scandinavian transmission)); Sigrunn does not have one recorded yet.
- Sigrunn has 2 syllables, compared with 1 for Thea.
- A meaning is recorded for Thea; Sigrunn doesn't have one written yet.
- Both names have recorded usage in NO.
How each name got here
Sigrunn
Popularity journey
First recorded1945
First recorded at #168 among girls in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1945–1985
Highest recorded position: #136 among girls in Norway, in 1948 (recorded 1945–1985).
Norway · Girls
Most recent1985
Most recently recorded at #635 among girls in Norway, in 1985.
Norway · Girls
Thea
Popularity journey
First recorded1950
First recorded at #380 among girls in Norway in 1950 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1950–2025
Highest recorded position: #1 among girls in Norway, in 2006 (recorded 1950–2025).
Norway · Girls
Most recent2025
Most recently recorded at #50 among girls in Norway, in 2025.
Norway · Girls