Greek name from Isis (Egyptian goddess) and doron (gift), meaning "gift of Isis."
Isidore carries one of the most intellectually distinguished pedigrees of any name in the Western tradition. It derives from the Greek Isidoros, a compound of Isis — the Egyptian goddess of wisdom and magic — and doron, meaning "gift." The name thus translates as "gift of Isis," reflecting the deep cultural exchange of the ancient Mediterranean world, where Greek-speaking communities gave thanks to the great Egyptian deity by naming their children in her honor.
The name's most towering bearer is Saint Isidore of Seville (c. 560–636 CE), the Visigothic bishop and polymath who compiled the Etymologiae, a twenty-volume encyclopedia that attempted to preserve all human knowledge in the wake of Rome's collapse. For medieval Europe, Isidore's encyclopedia was second in importance only to scripture, and he was venerated as one of the greatest scholars of the early church — so revered that Pope John Paul II proposed him as the patron saint of the internet in 1997, a role ratified in 1999.
A separate Saint Isidore the Farmer, patron of Madrid and agricultural workers, gave the name broad popular appeal across the Spanish-speaking Catholic world. In Jewish communities, the name Isidore (often Isidor or Izzy) was enormously popular in the late nineteenth and early twentieth centuries, particularly among Ashkenazi families in Europe and America. For a generation of Jewish immigrants, it was an Anglicized form that retained a faint echo of Hebrew tradition while signaling assimilation. That association faded as naming fashions shifted, leaving Isidore today as a name of striking rarity — erudite, warmly historical, and carrying the quiet prestige of genuine scholarship.