The Ferrari 312T was a Ferrari Formula One car design, based on the 312B3 from 1974. In various versions, it was used from 1975 until 1980. It was designed by Mauro Forghieri for the 1975 season, and was an uncomplicated and clean design that responded well to mechanical upgrades.

The 312T series won 27 races, four Constructors' and three Drivers' Championships, making it the most successful car design in Formula One history. It was replaced for the 1981 season by the 126 C, Ferrari's first turbocharged F1 car. It was also Ferrari's last naturally-aspirated F1 car until the Ferrari 640 in 1989, after the ban on turbocharged engines.