Heidi vs Mia
Heidi and Miacompared 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.
New South Wales, Australia · Girls
In 2019, Heidi was ranked #99 and Mia #4 among girls in New South Wales, Australia.
Republic of Ireland · Girls
In 2025, Heidi was ranked #91 and Mia #11 among girls in Republic of Ireland.
New Zealand · Girls
In 2022, Heidi was ranked #99 and Mia #12 among girls in New Zealand.
England and Wales · Girls
In 2024, Heidi was ranked #107 and Mia #14 among girls in England and Wales.
Northern Ireland · Girls
In 2024, Heidi was ranked #65 and Mia #20 among girls in Northern Ireland.
Norway · Girls
In 2025, Heidi was ranked #437 and Mia #21 among girls in Norway.
Scotland · Girls
In 2024, Heidi was ranked #95 and Mia #26 among girls in Scotland.
Heidi and Mia over time
Heidi and Mia appear together in 4 published lists, across 155 years of shared records. Mia held the stronger position in more years in 3 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.
Each reached its own highest recorded position first in 2 of the lists they share.
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 1996, Mia moved ahead of Heidi in Norway · Girls — #82 and #83 the year before became #91 and #84.
- Mirrored each other
Over 69 shared years in Norway · Girls, Mia rose about as far as Heidi fell — from #201 and #357 in 1947 to #437 and #21 in 2025.
- Longest-running competitions
Heidi and Mia were both ranked in Norway · Girls for 69 years, from 1947 to 2025, ending at #437 and #21.
List by list
Norway · Girls69 shared years, 1947–2025
Heidi held the stronger position in 39 of those years, Mia in 30.
Highest recorded here: Heidi #2 in 1965, Mia #8 in 2011.
The order changed in 1996: Mia moved ahead. In 1995 they stood at #82 and #83; by 1996 that had become #91 and #84.
Most recent shared year, 2025: Heidi #437, Mia #21.
Republic of Ireland · Girls31 shared years, 1971–2025
Heidi held the stronger position in 2 of those years, Mia in 28.
Highest recorded here: Heidi #74 in 2019, Mia #6 in 2012.
The order changed in 1992: Mia moved ahead. In 1991 they stood at #442 and #492; by 1992 that had become #523 and #456.
Most recent shared year, 2025: Heidi #91, Mia #11.
England and Wales · Girls29 shared years, 1996–2024
Heidi held the stronger position in 0 of those years, Mia in 29.
Highest recorded here: Heidi #76 in 2016, Mia #5 in 2019.
The order between them never changed and held in this list.
Most recent shared year, 2024: Heidi #107, Mia #14.
Northern Ireland · Girls26 shared years, 1997–2024
Heidi held the stronger position in 0 of those years, Mia in 26.
Highest recorded here: Heidi #48 in 2021, Mia #14 in 2015.
The order between them never changed and held in this list.
Most recent shared year, 2024: Heidi #65, Mia #20.
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 | Heidi | Mia |
|---|---|---|
| Record type | Editorially researched profile | Editorially researched profile |
| Gender usage | female | female |
| Meaning | 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. | Directly a diminutive of Maria. |
| Origin | Germanic, diminutive of Adelheid | Scandinavian/Italian, via Maria |
| Pronunciation | /ˈhaɪ̯.di/ | /ˈmiːə/ |
| Syllables | 2 | 1 |
| Common variants / nicknames | Not yet recorded | Not yet recorded |
| Recorded regional usage | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ | AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ |
| Most recent popularity observation | Republic of Ireland · Girls #91 (2025) | New South Wales, Australia · Girls #5 (2025) |
| Pronunciation clarity (demonstration score) | 90/100 | 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
- Heidi is recorded with a Germanic, diminutive of Adelheid origin, while Mia is recorded with a Scandinavian/Italian, via Maria origin.
- Heidi has 2 syllables, compared with 1 for Mia.
- Heidi's recorded meaning differs from Mia's — see the table above for each.
- Both names have recorded usage in AU-NSW, GB-ENW, GB-NIR, GB-SCT, IE, NO, NZ.
How each name got here
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
Mia
Popularity journey
First recorded1947
First recorded at #357 among girls in Norway in 1947 — the earliest year that source publishes this name, not necessarily the earliest it was used.
Norway · Girls
Highest recorded1997–2025
Highest recorded position: #2 among girls in New South Wales, Australia, in 2008 (recorded 1997–2025).
New South Wales, Australia · Girls
Most recent2025
Most recently recorded at #5 among girls in New South Wales, Australia, in 2025.
New South Wales, Australia · Girls