Kathrin vs Thea
Kathrin 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 1990, Kathrin was ranked #660 and Thea #44 among girls in Norway.
England and Wales · Girls
In 2008, Kathrin was ranked #5545 and Thea #241 among girls in England and Wales.
Kathrin and Thea over time
Kathrin and Thea appear together in 1 published list, across 24 years of shared records. Thea held the stronger position in more years in 1 of them, Kathrin 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.
Kathrin 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.
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.
- One moved ahead of the other
In 1977, Thea moved ahead of Kathrin in Norway · Girls — #285 and #290 the year before became #513 and #194.
- Repeatedly exchanged positions
Kathrin and Thea changed places 5 times in Norway · Girls between 1965 and 1990, ending at #660 and #44.
- Mirrored each other
Over 24 shared years in Norway · Girls, Thea rose about as far as Kathrin fell — from #299 and #395 in 1965 to #660 and #44 in 1990.
List by list
Norway · Girls24 shared years, 1965–1990
Kathrin held the stronger position in 8 of those years, Thea in 16.
Highest recorded here: Kathrin #285 in 1976, Thea #44 in 1990.
The order changed in 1977: Thea moved ahead. In 1976 they stood at #285 and #290; by 1977 that had become #513 and #194.
Most recent shared year, 1990: Kathrin #660, Thea #44.
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 | Kathrin | 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 | GB-ENW, NO | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | England and Wales · Girls #5545 (2008) | 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) | 60/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Thea has a recorded origin (Greek (via Germanic/Scandinavian transmission)); Kathrin does not have one recorded yet.
- Kathrin has 2 syllables, compared with 1 for Thea.
- A meaning is recorded for Thea; Kathrin doesn't have one written yet.
- Both names have recorded usage in GB-ENW, NO.
How each name got here
Kathrin
Popularity journey
First recorded1962
First recorded at #508 among girls in Norway in 1962 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1962–1990
Highest recorded position: #285 among girls in Norway, in 1976 (recorded 1962–1990).
Norway · Girls
Most recent1990
Most recently recorded at #660 among girls in Norway, in 1990.
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