Sébastien Maillard (born 2 May 1981, in Migennes) is a male hurdler from France.
He finished 5th in the 400m hurdles final at the 2006 European Athletics Championships in Gothenburg. He was a semi-finalist in the same event at the 2003 World Championships in Paris. As a junior, he competed in the decathlon.
Achievements
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
Representing  France | |||||
| 1999 | European Junior Championships | Riga, Latvia | 6th | 400 m hurdles | 52.55 |
| 2000 | World Junior Championships | Santiago, Chile | — | Decathlon | DNF |
| 2001 | European U23 Championships | Amsterdam, Netherlands | 7th | Decathlon | 7562 pts |
| 2003 | European U23 Championships | Bydgoszcz, Poland | 6th | 400 m hurdles | 50.28 |
| 5th | 4 × 400 m relay | 3:06.79 | |||
| World Championships | Paris, France | 23rd (sf) | 400 m hurdles | 50.70 | |
| 2005 | Mediterranean Games | Almería, Spain | 4th | 400 m hurdles | 50.71 |
| 2006 | World Indoor Championships | Moscow, Russia | 6th | 4 × 400 m relay | 3:09.55 |
| European Championships | Gothenburg, Sweden | 5th | 400 m hurdles | 49.54 | |
| 2009 | Mediterranean Games | Pescara, Italy | 1st | 400 m hurdles | 49.80 |
| Jeux de la Francophonie | Beirut, Lebanon | 2nd | 400 m hurdles | 50.35 | |
| 7th | 4 × 100 m relay | 40.73 | |||
| 4th | 4 × 400 m relay | 3:11.43 | |||
| 2010 | European Championships | Barcelona, Spain | 14th (sf) | 400 m hurdles | 51.26 |
