Donnini is an Italian surname. Notable people with the surname include:
Dennis Donnini (1925–1945), British soldier Dionigi Donnini (1681–1743), Italian painter Girolamo Donnini (1681 – 1743), Italian painter Girolamo Donnini (composer) (fl. 1719 – died 1752), Italian composer and conductor Giulio Donnini (1923–2001), Italian actor
See also Donini, surname