Halldis vs Thea
Halldis 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 1979, Halldis was ranked #629 and Thea #174 among girls in Norway.
Halldis and Thea over time
Halldis and Thea appear together in 1 published list, across 8 years of shared records. Halldis 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.
Halldis 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 · Girls8 shared years, 1950–1979
Halldis held the stronger position in 6 of those years, Thea in 2.
Highest recorded here: Halldis #179 in 1950, Thea #174 in 1979.
The order changed in 1979: Thea moved ahead. In 1978 they stood at #495 and #528; by 1979 that had become #629 and #174.
Most recent shared year, 1979: Halldis #629, Thea #174.
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 | Halldis | 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 #629 (1979) | 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)); Halldis does not have one recorded yet.
- Halldis has 2 syllables, compared with 1 for Thea.
- A meaning is recorded for Thea; Halldis doesn't have one written yet.
- Both names have recorded usage in NO.
How each name got here
Halldis
Popularity journey
First recorded1945
First recorded at #187 among girls in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1945–1979
Highest recorded position: #179 among girls in Norway, in 1950 (recorded 1945–1979).
Norway · Girls
Most recent1979
Most recently recorded at #629 among girls in Norway, in 1979.
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