Giancarlo Primo (November 4, 1924, Rome – December 27, 2005, Civita Castellana, Italy) was an Italian professional basketball player and coach.

As a player of the senior Italian national team, Primo participated at the EuroBasket 1947, the 1948 Summer Olympic Games, the EuroBasket 1949, and the 1951 Mediterranean Games, where he won a bronze medal.

He coached Italy at the: 1972 Summer Olympic Games, the 1976 Summer Olympic Games, the 1970 FIBA World Championship, the 1978 FIBA World Championship, and 6 EuroBasket tournaments.

While he was coaching the senior Italian national team, Italy defeated, for the first time, both the United States, at the 1970 FIBA World Championship, and the Soviet Union, at the 1977 EuroBasket.

After 1979, he coached the club teams: Livorno (1980–1982), Cantù (1982–1983, winning the FIBA Intercontinental Cup and the FIBA European Champions Cup (EuroLeague)), SB Gorizia (1983–1984), O.T.C.