Boy · Name family
Dennis
912,316births recorded
26Countries
7Variants
1992Peak · Slovenia
#74Czechia 2025
Dennis is a boy name family recorded 912,316 times in 26 countries since 1880. It ranks highest today in Czechia (#74 in 2025). Its all-time peak was in Slovenia in 1992, at 1,146.8 births per 100,000. Elsewhere it is mostly given as Denis (France, Kazakhstan, Argentina).
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 Dennis
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Dennis | English | 623,692 | 🇺🇸 United States | #707 | 1946 | ▼ 28 % |
| Dennis | English | 15,356 | 🇨🇦 Ontario | #964 | 1946 | ▼ 23 % |
| Dennis | English | 4,897 | 🇨🇦 British Columbia | – | 1945 | – |
| Dennis | English | 3,338 | 🇩🇰 Denmark | – | 1985 | – |
| Dennis | English | 2,725 | 🏴 England & Wales | #478 | 2017 | ▼ 17 % |
| Dennis | English | 2,623 | 🇸🇪 Sweden | #610 | 1998 | ▼ 71 % |
| Denis | French | 153,205 | 🇫🇷 France | #1126 | 1963 | ▼ 46 % |
| Denis | French | 21,606 | 🇺🇸 United States | #1708 | 1952 | ▲ 3 % |
| Denis | French | 17,469 | 🇰🇿 Kazakhstan | #364 | 1992 | ▼ 73 % |
| Denis | French | 16,070 | 🇦🇷 Argentina | #596 | 1990 | ▼ 46 % |
| Denis | French | 7,115 | 🇮🇪 Ireland | #232 | 1964 | ▼ 18 % |
| Denis | French | 4,892 | 🇨🇦 Ontario | #1217 | 1951 | ▼ 2 % |
| Deniz | French | 1,420 | 🇫🇷 France | #1069 | 2018 | ▲ 26 % |
| Deniz | French | 1,301 | 🏴 England & Wales | #896 | 2019 | ▼ 14 % |
| Deniz | French | 1,212 | 🇺🇸 United States | #2604 | 2019 | ▲ 44 % |
| Deniz | French | 891 | 🇦🇹 Austria | #226 | 2008 | ▼ 20 % |
| Deniz | French | 716 | 🇨🇭 Switzerland | #514 | 2015 | ▼ 66 % |
| Deniz | French | 604 | 🇧🇪 Belgium | #425 | 2021 | ▼ 8 % |
| Denys | Ukrainian | 1,600 | 🇫🇷 France | #5174 | 1950 | ▼ 37 % |
| Denys | Ukrainian | 255 | 🇵🇱 Poland | #239 | 2022 | new |
| Denys | Ukrainian | 215 | 🇺🇸 United States | #8243 | 2009 | new |
| Denys | Ukrainian | 106 | 🇦🇷 Argentina | – | 1983 | – |
| Denys | Ukrainian | 22 | 🏴 England & Wales | – | 2024 | – |
| Denys | Ukrainian | 10 | 🇨🇦 Québec | – | 2013 | – |
| Dénes | Hungarian | 1,306 | 🇭🇺 Hungary | #93 | 2014 | – |
| Denisz | Hungarian | 917 | 🇭🇺 Hungary | #80 | 2023 | – |
| Dennys | French | 560 | 🇺🇸 United States | – | 1998 | – |
| Dennys | French | 180 | 🇫🇷 France | – | 1999 | – |
| Dennys | French | 93 | 🇦🇷 Argentina | – | 1989 | – |
How we grouped these names
- Dennis ↔ Denis — checked by hand
- Dennis ↔ Dénes — checked by hand
- Dennis ↔ Denys — checked by hand
- Dennis ↔ Deniz — spelling variant
- Dennis ↔ Denisz — spelling variant
- Dennis ↔ Dennys — spelling variant
Questions about Dennis
How popular is the name Dennis?
In 2025 it ranked #74 in Czechia. Official registers record 912,316 births across 26 countries.
What is Dennis in other languages?
Denis (French); Deniz (French); Denys (Ukrainian); Dénes (Hungarian); Denisz (Hungarian); Dennys (French).
When was Dennis most popular?
It peaked in Slovenia in 1992, at 1,146.8 births per 100,000.
Is Dennis a boy or a girl name?
In official birth registers, Dennis is a boy name.