Antoinette is a French feminine given name.
Antoinette may also refer to:
- Antoinette (manufacturer), an early French manufacturer of engines, aircraft and cars
- Antoinette (barque), a Canadian ship wrecked on the Doom Bar
- Jean-Étienne Antoinette (born 1966), French Guianan politician
- Antoinette (rapper), American rapper Antoinette Lovell Patterson (born 1970)
- a title character of Antoine and Antoinette, a 1947 French comedy film directed by Jacques Becker
- Antoinette (film), a 1932 French comedy film