Constant (surname)
Constant is a surname. Notable people with the surname include:
- Benjamin Constant, Swiss-born thinker, writer and French politician
- Benjamin Constant (Brazil), Brazilian military man and political thinker
- David Constant, English cricket umpire
- Edward Constant II, American historian
- Emmanuel Constant (bishop), Roman Catholic Haitian bishop
- Emmanuel Constant, Haitian criminal
- Eugen Constant, Romanian writer and trade unionist
- Eugène Constant, French rower
- F. Woodbridge Constant, American physicist
- Jean-Joseph Benjamin-Constant,, French painter
- Kevin Constant, Guinean footballer
- Marius Constant, Romanian-born French composer
- Paul-Henri-Benjamin d'Estournelles de Constant, French diplomat and politician
- Pete Constant, American politician