Declining since 2020, #5,861 for boys today.
Popularity of Isadore since 1880
Babies named Isadore per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1880s | 93 |
| 1890s | 174 |
| 1900s | 350 |
| 1910s | 1,980 |
| 1920s | 1,364 |
| 1930s | 443 |
| 1940s | 295 |
| 1950s | 271 |
| 1960s | 170 |
| 1970s | 131 |
| 1980s | 90 |
| 1990s | 82 |
| 2000s | 92 |
| 2010s | 95 |
| 2020s | 84 |
Meaning & origin
Isadore is a name with ancient roots, derived from the Greek Isidoros meaning 'gift of Isis'. It entered English usage through the medieval Saint Isidore, and was particularly popular among Jewish families as an Anglicized form of Yisrael or as a standalone name. Its peak in the U.S. was in 1913, when it ranked 586th. Since then, it has steadily declined, with a notable acceleration after 2020. In 2025, the name occurred for only 1 in every 113,872 newborns, placing it at rank 5,861. Isadore never appeared among the top states in any recent data, reflecting its rarity. Despite its fall from common use, the name retains a classic, scholarly feel due to its saintly associations and its connection to the more popular feminine form Isadora.
Isadore is derived from the Greek name Isidoros, a compound of Isis (the name of the Egyptian goddess) and doron meaning 'gift'. The name was borne by several early saints, including Saint Isidore of Seville, a 6th-century bishop and Doctor of the Church. It was common in medieval Europe and later among Jewish communities as a vernacular form of Yisrael.
Where Isadore is most popular
Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.
Nicknames & variants
Nicknames: Izzy, Dory, Isa
Sibling names for Isadore
Names that share Isadore's style, for a brother or sister.
