Fiadh vs Heidi
Fiadh and Heidicompared 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.
Northern Ireland · Girls
In 2024, Fiadh was ranked #3 and Heidi #65 among girls in Northern Ireland.
Republic of Ireland · Girls
In 2025, Fiadh was ranked #3 and Heidi #91 among girls in Republic of Ireland.
Scotland · Girls
In 2024, Fiadh was ranked #72 and Heidi #95 among girls in Scotland.
England and Wales · Girls
In 2024, Fiadh was ranked #374 and Heidi #107 among girls in England and Wales.
Fiadh and Heidi over time
Fiadh and Heidi appear together in 3 published lists, across 51 years of shared records. Fiadh held the stronger position in more years in 2 of them, Heidi in 1.
The order between them changed and held in 2 of those lists — a change in that published list, never a claim that one name displaced the other.
Heidi reached its own highest recorded position earlier in 3 of those lists, and Fiadh 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 2013, Fiadh moved ahead of Heidi in Northern Ireland · Girls — #172 and #94 the year before became #106 and #116.
- Peaked in the same years
Both reached their highest recorded position in Northern Ireland · Girls within 2 years — Fiadh #2 in 2023, Heidi #48 in 2021.
List by list
Republic of Ireland · Girls22 shared years, 2002–2025
Fiadh held the stronger position in 13 of those years, Heidi in 9.
Highest recorded here: Fiadh #1 in 2021, Heidi #74 in 2019.
The order changed in 2013: Fiadh moved ahead. In 2012 they stood at #146 and #118; by 2013 that had become #82 and #105.
Most recent shared year, 2025: Fiadh #3, Heidi #91.
Northern Ireland · Girls17 shared years, 2008–2024
Fiadh held the stronger position in 12 of those years, Heidi in 5.
Highest recorded here: Fiadh #2 in 2023, Heidi #48 in 2021.
The order changed in 2013: Fiadh moved ahead. In 2012 they stood at #172 and #94; by 2013 that had become #106 and #116.
Most recent shared year, 2024: Fiadh #3, Heidi #65.
England and Wales · Girls12 shared years, 2013–2024
Fiadh held the stronger position in 0 of those years, Heidi in 12.
Highest recorded here: Fiadh #355 in 2021, Heidi #76 in 2016.
The order between them never changed and held in this list.
Most recent shared year, 2024: Fiadh #374, Heidi #107.
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 | Fiadh | Heidi |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| Gender usage | female | female |
| Meaning | Carries dual meanings in Modern Irish: 'wild, wild animal, deer' (from Irish 'fia'), or alternatively 'respect'. | A German diminutive of Adelheid. Gained wide recognition through Johanna Spyri's 1880 children's novel Heidi, and its 1937 film adaptation starring Shirley Temple. |
| Origin | Irish (modern) | Germanic, diminutive of Adelheid |
| Pronunciation | /ˈfʲiə/ | /ˈhaɪ̯.di/ |
| Syllables | 1 | 2 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | GB-ENW, GB-NIR, GB-SCT, IE | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Girls #3 (2025) | Republic of Ireland · Girls #91 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | 90/100 |
| Spelling simplicity (demonstration score) | 94/100 | 94/100 |
| International familiarity (demonstration score) | 100/100 | 100/100 |
| Data Confidence | medium | medium |
What the data shows
- Fiadh is recorded with a Irish (modern) origin, while Heidi is recorded with a Germanic, diminutive of Adelheid origin.
- Fiadh has 1 syllable, compared with 2 for Heidi.
- Fiadh's recorded meaning differs from Heidi's — see the table above for each.
- Both names have recorded usage in GB-ENW, GB-NIR, GB-SCT, IE.
How each name got here
Fiadh
Popularity journey
First recorded2002
First recorded at #620 among girls in Republic of Ireland in 2002 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Republic of Ireland · Girls
Highest recorded2002–2025
Highest recorded position: #1 among girls in Republic of Ireland, in 2021 (recorded 2002–2025).
Republic of Ireland · Girls
Most recent2025
Most recently recorded at #3 among girls in Republic of Ireland, in 2025.
Republic of Ireland · Girls
Heidi
Popularity journey
First recorded1945
First recorded at #188 among girls in Norway in 1945 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1945–2025
Highest recorded position: #2 among girls in Norway, in 1965 (recorded 1945–2025).
Norway · Girls
Most recent2025
Most recently recorded at #437 among girls in Norway, in 2025.
Norway · Girls