| Sébastien Rouault | |
| Fullname: | Sébastien Rouault |
| Strokes: | Freestyle |
| Club: | CNO ST Germain en Laye |
| Collegeteam: | University of Georgia (U.S.) |
| Birth Date: | 24 February 1986 |
| Birth Place: | Le Chesnay, Yvelines |
| Weight: | 75kg (165lb) |
Sébastien Rouault (born 24 February 1986) is a male freestyle swimmer from France, who competed for his native country at the 2008 Summer Olympics in Beijing, China.