Fianna vs Thea
Fianna 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 2020, Fianna was ranked #5493 and Thea #57 among girls in England and Wales.
Northern Ireland · Girls
In 2024, Fianna was ranked #161 and Thea #75 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2023, Fianna was ranked #856 and Thea #168 among girls in Republic of Ireland.
Fianna and Thea over time
Fianna and Thea appear together in 3 published lists, across 35 years of shared records. Thea held the stronger position in more years in 3 of them, Fianna 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.
Fianna reached its own highest recorded position earlier in 2 of those lists, Thea in 1. 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 Fianna in Northern Ireland · Girls — #107 and #123 the year before became #102 and #42.
- Repeatedly exchanged positions
Fianna and Thea changed places 5 times in Northern Ireland · Girls between 2007 and 2024, ending at #161 and #75.
- Peaked in the same years
Both reached their highest recorded position in England and Wales · Girls within 2 years — Fianna #3583 in 2017, Thea #46 in 2019.
List by list
Northern Ireland · Girls17 shared years, 2007–2024
Fianna held the stronger position in 5 of those years, Thea in 12.
Highest recorded here: Fianna #89 in 2021, Thea #40 in 2019.
The order changed in 2016: Thea moved ahead. In 2015 they stood at #107 and #123; by 2016 that had become #102 and #42.
Most recent shared year, 2024: Fianna #161, Thea #75.
England and Wales · Girls10 shared years, 2005–2020
Fianna held the stronger position in 0 of those years, Thea in 10.
Highest recorded here: Fianna #3583 in 2017, Thea #46 in 2019.
The order between them never changed and held in this list.
Most recent shared year, 2020: Fianna #5493, Thea #57.
Republic of Ireland · Girls8 shared years, 2008–2023
Fianna held the stronger position in 0 of those years, Thea in 8.
Highest recorded here: Fianna #629 in 2018, Thea #168 in 2022.
The order between them never changed and held in this list.
Most recent shared year, 2023: Fianna #856, Thea #168.
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 | Fianna | 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 #161 (2024) | Norway · Girls #50 (2025) |
| Pronunciation clarity (demonstration score) | Not yet recorded | 90/100 |
| Spelling simplicity (demonstration score) | 88/100 | 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)); Fianna does not have one recorded yet.
- Fianna has 2 syllables, compared with 1 for Thea.
- A meaning is recorded for Thea; Fianna doesn't have one written yet.
- Both names have recorded usage in GB-ENW, GB-NIR, IE.
How each name got here
Fianna
Popularity journey
First recorded2000
First recorded at #348 among girls in Northern Ireland in 2000 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Northern Ireland · Girls
Highest recorded2000–2024
Highest recorded position: #89 among girls in Northern Ireland, in 2021 (recorded 2000–2024).
Northern Ireland · Girls
Most recent2024
Most recently recorded at #161 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