Holding steady, #9,714 for boys today.
Popularity of Ilario since 1929
Babies named Ilario per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1920s | 6 |
| 1930s | 6 |
| 1940s | 0 |
| 1950s | 0 |
| 1960s | 0 |
| 1970s | 17 |
| 1980s | 9 |
| 1990s | 0 |
| 2000s | 71 |
| 2010s | 56 |
| 2020s | 26 |
Meaning & origin
Ilario is a rare Italian name that has never broken into widespread American usage. First recorded in the U.S. Social Security data in 1929, it peaked modestly in 2010 and has since remained stable at very low frequency. In 2025, its rank of 9,714 and incidence of 1 in 244,011 births confirm its status as a distinctive choice. Unlike many Italian imports that have surged in popularity, Ilario has stayed firmly under the radar, appealing to parents seeking a genuinely uncommon name with deep historical roots.
Ilario is the Italian form of the Latin name Hilarius, which derives from hilaris meaning "cheerful" or "merry." The name was borne by several early saints, including Pope Hilarius (461-468) and Saint Hilary of Poitiers (c. 300-368), a theologian and Doctor of the Church. In Italy, Ilario has been used since medieval times, though it remains relatively uncommon.
“Ilario” around the world
Where Ilario lands in the latest official birth statistics abroad, matched to the U.S. spelling.
France
10
babies in 2024
Sources: INSEE (France).
Nicknames & variants
Nicknames: Ilio, Lario, Rio
Variants: Hilary, Hilarius, Ilarione
Sibling names for Ilario
Names that share Ilario's style, for a brother or sister.
