Isidora or Isadora is a female given name of Greek origin, derived from Ἰσίδωρος, Isídōros (a compound of Ἶσις, Ísis, and δῶρον, dōron: "gift of [the goddess] Isis").
The male equivalent is Isidore.
The name survived the suppression of the worship of the Egyptian goddess Isis in the newly Christianized Roman Empire, and is, among others, the name of several Christian saints.
Similar "gift" names include the Greek "Theodore" ("gift of God"), the Persian "Mithradates" ("gift of Mithras") and Datis ("gift"), and the Hebrew "Matanya" ("gift of Jah"). The Indo-European "gift" names are ultimately derived from the *PIE root *deh₃-, "to give".
It was the ninth most popular name for baby girls in Chile in 2006.
- Saint Isidora, Christian 4th century saint and nun
- Isadora Bennett (1900–1980), American publicity agent for modern dance theatre
- Isidora Bjelica, (born 1967), Serbian writer
- Isadora Cerullo (born 1991), Brazilian-American rugby sevens player
- Isadora Duncan (1877 or 1878–1927), American dancer
- Isadora Newman (1878–1955), American artist, poet, writer, playwright and storyteller
- Isidora Sekulić (1877–1958), Serbian writer and adventurer
- Isadora Williams (born 1996), Brazilian-American figure skater
- Isidora Zegers (1803–1869), Spanish artist and composer