Donadio or Donadío is a surname of Italian origin. Variations include Donodeo, Donadeo and Donadei; derived from the Latin phrase dono Deo and Italian dono di Dio ("Gift of God"). Notable people with the surname include:
Candida Donadio (1929-2001), American literary agent Giulio Donadio (1889–1951), Italian actor and film director Giovanni Francesco Donadio (1449-1530), nicknamed "Mormando", Italian architect and Master organist Sebastián Donadío (born 1972), Argentine track cyclist
See also List of The Passage characters#Alicia Donadio