Casiraghi is an Italian surname. Notable people with the surname include:
Andrea Casiraghi (born 1984), 2nd in line to the Monegasque throne after his mother, Caroline, Princess of Hanover
Charlotte Casiraghi (born 1986), 4th in line to the Monegasque throne after her mother, Caroline, Princess of Hanover
Cinzia Casiraghi, an Italian physicist who won the Sofia Kovalevskaya Award
Daniele Casiraghi, Italian footballer
Rosagnese Casiraghi, mayor of Missaglia
Pierre Casiraghi (born 1987), 3rd in line to the Monegasque throne after his mother, Caroline, Princess of Hanover
Pierluigi Casiraghi, (born 1969), Italian football player
Sister Leonarda Angela Casiraghi, recipient of the Padma Shri Awards
Stefano Casiraghi (1960-1990), 2nd husband of Caroline, Princess of Hanover
Fictional characters:
Signor Casiraghi, character in "Il mediatore"
Camila Casiraghi, character in Juegos de fuego portrayed by Alejandra Fosalba