8,500births recorded
8Countries
2Variants
2016Peak · Belgium
#198Belgium 2025
Len is a boy name family recorded 8,500 times in 8 countries since 1880. It ranks highest today in Belgium (#198 in 2025). Its all-time peak was in Belgium in 2016, at 153.5 births per 100,000. Elsewhere it is mostly given as Lenn (Belgium, Switzerland, Germany (large cities)).
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.
All forms of Len
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Len | French | 4,616 | 🇺🇸 United States | #8910 | 1885 | ▼ 25 % |
| Len | French | 694 | 🇧🇪 Belgium | #900 | 2011 | ▼ 58 % |
| Len | French | 328 | 🇨🇭 Switzerland | #982 | 2019 | ▼ 65 % |
| Len | French | 72 | 🇩🇪 Germany (large cities) | – | 2017 | – |
| Len | French | 20 | 🇫🇷 France | – | 2023 | – |
| Len | French | 6 | 🏴 England & Wales | – | 2024 | – |
| Lenn | French | 1,586 | 🇧🇪 Belgium | #198 | 2019 | ▼ 26 % |
| Lenn | French | 521 | 🇺🇸 United States | – | 1918 | – |
| Lenn | French | 435 | 🇨🇭 Switzerland | #257 | 2018 | ▲ 39 % |
| Lenn | French | 203 | 🇩🇪 Germany (large cities) | #297 | 2025 | – |
| Lenn | French | 14 | 🇦🇹 Austria | – | 2020 | – |
How we grouped these names
- Len ↔ Lenn — spelling variant
Questions about Len
How popular is the name Len?
In 2025 it ranked #198 in Belgium. Official registers record 8,500 births across 8 countries.
What is Len in other languages?
Lenn (French).
When was Len most popular?
It peaked in Belgium in 2016, at 153.5 births per 100,000.
Is Len a boy or a girl name?
In official birth registers, Len is a boy name.