| Sébastien Portal | |
| Fullname: | Sébastien Portal |
| Birth Date: | 4 June 1982 |
| Birth Place: | Auch, France |
| Height: | 1.80NaN0 |
| Weight: | 66kg (146lb) |
| Currentteam: | Unattached |
| Discipline: | Road |
| Role: | Rider |
| Proyears1: | 2005–2006 |
| Proyears2: | 2007 |
| Proyears3: | 2008–2009 |
Sébastien Portal (born June 4, 1982 in Auch) is a French professional road bicycle racer. He is the brother of the late racing cyclist and directeur sportif Nicolas Portal.[1]