Theodore is a boy name family recorded 447,968 times in 28 countries since 1880. It ranks highest today in Alberta (#2 in 2025). Its all-time peak was in British Columbia in 2023, at 752.8 births per 100,000. Elsewhere it is mostly given as Theodor (Sweden), Teodoro (Argentina), Teodor (Poland, Bulgaria).
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
Which form wins where
Births per 100,000 newborns for each form, in the selected country.
Rank in countries that publish top lists only
All forms of Theodore
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Theodore | English | 318,175 | 🇺🇸 United States | #4 | 2025 | ▲ 259 % |
| Theodore | English | 32,849 | 🏴 England & Wales | #9 | 2022 | ▲ 148 % |
| Theodore | English | 15,515 | 🇫🇷 France | #205 | 1901 | ▲ 53 % |
| Theodore | English | 8,744 | 🇨🇦 Ontario | #3 | 2023 | ▲ 179 % |
| Theodore | English | 3,505 | 🇦🇺 New South Wales | #3 | 2024 | – |
| Theodore | English | 3,027 | 🇨🇦 Québec | #11 | 2025 | ▲ 458 % |
| Theodor | English | 6,688 | 🇸🇪 Sweden | #38 | 2024 | ▲ 20 % |
| Theodor | English | 3,510 | 🇦🇹 Austria | #29 | 2022 | ▲ 73 % |
| Theodor | English | 2,977 | 🇩🇰 Denmark | #30 | 2024 | – |
| Theodor | English | 2,348 | 🇩🇪 Germany (large cities) | #18 | 2025 | – |
| Theodor | English | 2,216 | 🇺🇸 United States | #1992 | 2022 | ▲ 57 % |
| Theodor | English | 789 | 🏴 England & Wales | #606 | 2021 | ▲ 121 % |
| Teodor | English | 6,497 | 🇵🇱 Poland | #28 | 2025 | ▲ 997 % |
| Teodor | English | 4,458 | 🇧🇬 Bulgaria | #5 | 2023 | – |
| Teodor | English | 1,758 | 🇸🇪 Sweden | #198 | 2005 | ▼ 19 % |
| Teodor | English | 914 | 🏴 England & Wales | #507 | 2021 | ▲ 133 % |
| Teodor | English | 716 | 🇭🇺 Hungary | #63 | 2025 | – |
| Teodor | English | 635 | 🇦🇹 Austria | #122 | 2024 | ▲ 93 % |
| Teodoro | Italian | 9,237 | 🇦🇷 Argentina | #1430 | 1938 | ▲ 33 % |
| Teodoro | Italian | 3,386 | 🇺🇸 United States | #2718 | 1884 | ▲ 69 % |
| Teodoro | Italian | 37 | 🇺🇾 Montevideo (Uruguay) | – | 1946 | – |
| Teodoro | Italian | 36 | 🏴 England & Wales | #2437 | 2022 | – |
| Teodoro | Italian | 35 | 🇫🇷 France | – | 2022 | – |
| Teodoro | Italian | 11 | 🇨🇭 Switzerland | #982 | 2025 | – |
| Fyodor | Russian | 995 | 🇰🇿 Kazakhstan | #760 | 2017 | ▼ 50 % |
| Fyodor | Russian | 103 | 🇺🇸 United States | #10695 | 2020 | ▲ 29 % |
| Fedor | Russian | 723 | 🇰🇿 Kazakhstan | – | 1991 | – |
| Fedor | Russian | 155 | 🇺🇸 United States | #8910 | 2014 | ▼ 41 % |
| Fedor | Russian | 15 | 🇫🇷 France | – | 2015 | – |
| Fedor | Russian | 12 | 🏴 England & Wales | – | 2019 | – |
| Fedor | Russian | 11 | 🇦🇷 Argentina | – | 1950 | – |
| Theodoro | Portuguese | 309 | 🇺🇸 United States | #2884 | 2025 | new |
| Theodoro | Portuguese | 5 | 🇮🇪 Ireland | – | 2023 | – |
How we grouped these names
- Theodore ↔ Teodoro — checked by hand
- Theodore ↔ Fyodor — checked by hand
- Theodore ↔ Fedor — checked by hand
- Theodore ↔ Theodor — checked by hand
- Theodore ↔ Teodor — checked by hand
- Teodoro ↔ Theodoro — spelling variant
Questions about Theodore
How popular is the name Theodore?
In 2025 it ranked #2 in Alberta. Official registers record 447,968 births across 28 countries.
What is Theodore in other languages?
Theodor (English); Teodor (English); Teodoro (Italian); Fyodor (Russian); Fedor (Russian); Theodoro (Portuguese).
When was Theodore most popular?
It peaked in British Columbia in 2023, at 752.8 births per 100,000.
Is Theodore a boy or a girl name?
In official birth registers, Theodore is a boy name.