Piquet can refer to:
- Nelson Piquet (born 1952), a Brazilian retired Formula One driver and three-time World Drivers' Champion, winning the title in 1981, 1983, 1987. He drove in F1 from 1978 to 1991 for Ensign, non-works McLaren, Brabham, Williams, Lotus and Benetton. Father (and manager) of Nelson Piquet, Jr..
- Nelson Piquet, Jr. (born 1985), a Brazilian motor racing driver who drove in Formula One for Renault in 2008 and 2009 with little success. He currently drives in NASCAR. He is best known for his involvement in the Crashgate scandal. Son of Nelson Piquet.
- The Autódromo Internacional Nelson Piquet, also known as Jacarepaguá, which was a Brazilian circuit that was used in 1978 and from 1981 to 1989 while the Autódromo José Carlos Pace (Interlagos) was being modified.