Giulietti is an Italian surname. Notable people with the surname include:
Ana Maria Giulietti (born 1945), Brazilian biochemist, botanist, and educator Giuseppe Giulietti (trade unionist) (1879–1953), Italian sailor who became a leading trade union activist Giuseppe Giulietti (politician) (born 1953), Italian journalist, trade unionist and politician Giuseppe Maria Giulietti (1847–1881), Italian soldier, geographer and explorer Logan Giulietti-Schmitt (born 1985), American former competitive ice dancer
See also Lake Giulietti or Lake Afrera, hypersaline lake in northern Ethiopia