Roise vs Thea
Roise 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.
England and Wales · Girls
In 2023, Roise was ranked #4709 and Thea #63 among girls in England and Wales.
Northern Ireland · Girls
In 2024, Roise was ranked #97 and Thea #75 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2017, Roise was ranked #189 and Thea #189 among girls in Republic of Ireland.
Roise and Thea over time
Roise and Thea appear together in 2 published lists, across 37 years of shared records. Neither was ahead in more lists than the other.
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.
Thea reached its own highest recorded position earlier in 2 of those lists, and Roise 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 2016, Thea moved ahead of Roise in Northern Ireland · Girls — #116 and #123 the year before became #151 and #42.
- Repeatedly exchanged positions
Roise and Thea changed places 8 times in Republic of Ireland · Girls between 1999 and 2017, ending at #189 and #189.
- Peaked in the same years
Both reached their highest recorded position in Republic of Ireland · Girls within 2 years — Roise #189 in 2017, Thea #187 in 2016.
List by list
Northern Ireland · Girls19 shared years, 2004–2024
Roise held the stronger position in 9 of those years, Thea in 10.
Highest recorded here: Roise #79 in 2022, Thea #40 in 2019.
The order changed in 2016: Thea moved ahead. In 2015 they stood at #116 and #123; by 2016 that had become #151 and #42.
Most recent shared year, 2024: Roise #97, Thea #75.
Republic of Ireland · Girls18 shared years, 1999–2017
Roise held the stronger position in 9 of those years, Thea in 5.
Highest recorded here: Roise #189 in 2017, Thea #187 in 2016.
The order between them never changed and held in this list.
Most recent shared year, 2017: Roise #189, Thea #189.
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 | Roise | 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, GB-NIR, IE | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Northern Ireland · Girls #97 (2024) | Norway · Girls #50 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 94/100 | 95/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Thea has a recorded origin (Greek (via Germanic/Scandinavian transmission)); Roise does not have one recorded yet.
- Roise has 2 syllables, compared with 1 for Thea.
- A meaning is recorded for Thea; Roise doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Roise
Popularity journey
First recorded1981
First recorded at #533 among girls in Republic of Ireland in 1981 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded1997–2024
Highest recorded position: #79 among girls in Northern Ireland, in 2022 (recorded 1997–2024).
Northern Ireland · Girls
Most recent2024
Most recently recorded at #97 among girls in Northern Ireland, in 2024.
Northern Ireland · 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