| Michel Fontaine | |
| Caption: | Michel Fontaine |
| Office: | Mayor of Saint-Pierre, Réunion |
| Term Start: | 19 March 2001 |
| Predecessor: | Élie Hoarau |
| Office2: | Member of the French Senate for Réunion |
| Term Start2: | 2011 |
| Term End2: | 2017 |
| Birth Date: | 6 May 1952 |
| Birth Place: | Romans-sur-Isère, France |
| Nationality: | French |
| Party: | The Republicans |
| Alma Mater: | University of Marseille |
| Profession: | Radiologist |
Michel Fontaine (born 6 May 1952 in Romans-sur-Isère, France) was a member of the Senate of France. He was elected in 2011 as one of three senators for the overseas department of Réunion. He was not re-elected in 2017. A radiologist by profession, he is a member of Les Républicains. He has also been the mayor of Saint-Pierre, Réunion since 2001.