Vaillant (surname)
Vaillant is a surname. Notable people with the surname include:
;Artists of the Dutch Golden Age
- Andries Vaillant, engraver and painter
- Bernard Vaillant, painter
- Jacques Vaillant, painter
- Jan Vaillant, painter
- Wallerant Vaillant, painter
;Politics
;Science and medicine
- François Le Vaillant, French explorer and ornithologist
- George Clapp Vaillant, American anthropologist
- George Eman Vaillant, American psychiatrist
- Léon Vaillant, French zoologist
- Louis Vaillant, French doctor, naturalist, explorer and soldier
- Sébastien Vaillant, French botanist
;Other
- André Vaillant, French linguist and Slavist
- Auguste-Nicolas Vaillant, French naval officer
- François Vaillant de Gueslis, French Jesuit missionary
- Greta Vaillant, French actress
- Jean Alexandre Vaillant, French and Romanian historian and schoolteacher
- Jean-Baptiste Philibert Vaillant, French soldier
- Jehan Vaillant, French composer
- John Vaillant, American writer and journalist
- Nigel Le Vaillant, British actor
- Pierre Henri Vaillant, French painter
- Raymond Vaillant, French composer
Fictional characters:
