Petitot may refer to:
- Émile Petitot (1838–1916), French Missionary Oblate, and Canadian northwest cartographer, ethnologist, geographer, linguist, and writer
- Petitot River, in northern Alberta and British Columbia, Canada, named in honor of Émile Petitot
- Jean Petitot (1607–1691), French-Swiss enamel painter
- Jean Louis Petitot (1652–c. 1730), French enamel painter; eldest son of Jean Petitot
- Louis Petitot (1794–1862), French sculptor
- Ennemond Alexandre Petitot (Lyon, 1727 – Parma, 1801), French architect active in Parma, Italy