Fontan may refer to:
Geography edit
- Fontan, Alpes-Maritimes - a village and commune in southern France
Medicine edit
- Fontan procedure - an operation performed on the heart of those with some forms of congenital heart disease
People edit
- Élodie Fontan – French actress
- Francis Fontan – French cardiothoracic surgeon who first performed the Fontan procedure
- François Fontan – French politician
- Osni Fontan – Brazilian footballer
- Victor Fontan – French cyclist