Giardini is a surname of Italian origin. Notable people with the surname include:
Anne Giardini (born 1959), Canadian lawyer and an author Eliane Giardini (born 1952), Brazilian actress Felice Giardini (1716–1796), Italian composer and violinist Giuliano Giardini (born 1955), retired Italian alpine skier
See also Giardini della Biennale, area of Venice, Italy where the Venice Biennale Art Festival is held