Giannini is a surname of Italian origin. The name refers to:
Adriano Giannini (born 1971), Italian actor and voice actor, son of Giancarlo Agnes Giannini (died 1977), American politician Amadeo Giannini (1870–1949), Italian-American banker; founder of Bank of America Dusolina Giannini (1902–1986), Italian-American opera soprano Eli Giannini (born 1956) Australian architect Ettore Giannini (1912–1990), Italian screenwriter and film director Ferruccio Giannini (1868–1948), Italian naturalized American tenor, and a pioneer of opera recording Frida Giannini (born 1972), Italian fashion designer Giancarlo Giannini (born 1942), Italian actor and voice actor, father of Adriano Giuseppe Giannini (born 1964), Italian professional football player Gustavo Giannini (born 1968), Argentine filmmaker Humberto Giannini (1927–2014), Chilean philosopher Joe Giannini (1888–1942), American professional baseball player John Giannini (born 1962), American college basketball coach Jorge Giannini (born 1948), Argentine retired field hockey player Luca Giannini (born 2004), Welsh rugby union player Margaret Giannini (1921–2021), American physician, government official Osvaldo Giannini (1934−1999), Chilean lawyer and politician Stefania Giannini (born 1960), current Italian Minister of Education, Universities and Research Tula Giannini, American academic and musicologist Vittorio Giannini (1903–1966), American composer
Others Elena Gianini Belotti (1929–2022), Italian writer Juan Pablo Gianini (born 1978), Argentine racing driver
See also Giannini (disambiguation)