1,747births recorded
5Countries
1Variants
1934Peak · Argentina
#882Switzerland 2025
Delio is a boy name family recorded 1,747 times in 5 countries since 1915. It ranks highest today in Switzerland (#882 in 2025). Its all-time peak was in Argentina in 1934, at 12.3 births per 100,000.
Popularity by country
Births per 100,000 newborns, all forms of the name combined.
All forms of Delio
| Variants | Language | Total births | Country | Latest rank | Peak year | 10-year trend |
|---|---|---|---|---|---|---|
| Delio | Italian | 1,419 | 🇦🇷 Argentina | #3212 | 1934 | new |
| Delio | Italian | 150 | 🇫🇷 France | #3605 | 2020 | ▲ 27 % |
| Delio | Italian | 98 | 🇺🇸 United States | – | 1915 | – |
| Delio | Italian | 64 | 🇨🇭 Switzerland | #882 | 2017 | ▲ 29 % |
| Delio | Italian | 16 | 🇧🇪 Belgium | – | 2017 | – |
Questions about Delio
How popular is the name Delio?
In 2025 it ranked #882 in Switzerland. Official registers record 1,747 births across 5 countries.
When was Delio most popular?
It peaked in Argentina in 1934, at 12.3 births per 100,000.
Is Delio a boy or a girl name?
In official birth registers, Delio is a boy name.