Pierre Petit

• Pierre Petit (engineer), French military engineer, mathematician, and physicist
• Pierre Petit (scholar), French poet, doctor, and classicist
• Pierre Petit (photographer), French photographer
• Pierre Petit de Julleville, French Catholic archbishop
• Pierre Petit (cinematographer), French cinematographer
• Pierre Petit (composer), French composer
• Pierre Petit (politician), Martinique politician
• Pierre Petit (racing driver), French racecar driver