Meaning and name origin
Isidoro \i-sido-ro, is(i)-doro\ as a boy's name is of Greek origin, and the meaning of Isidoro is "gift of Isis". Isidoro is a variant of Isidore (Greek): Isis was the principal goddess of ancient Egypt, and Isidore was a popular name among the ancient Greeks.
Isidoro is not a popular first name for males but a somewhat popular surname or last name for all people (#51225 out of 88799, Top 58%) (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Isidoro and its source form. The only popular variation form ranked in the Top 1000/100 is Isidore. (2014 statistics).