The 2009 Grand Prix de Tennis de Lyon was a men's tennis tournament played on indoor hard courts. It was the 23rd edition of the Grand Prix de Tennis de Lyon, and was part of the ATP World Tour 250 Series of the 2009 ATP World Tour. It was held at the Palais des Sports de Gerland in Lyon, France, from 26 October through 1 November 2009. Third-seeded Ivan Ljubičić won the singles title.
See main article: 2009 Grand Prix de Tennis de Lyon – Singles. Ivan Ljubičić defeated 
Michaël Llodra 7–5, 6–3
See main article: 2009 Grand Prix de Tennis de Lyon – Doubles. Julien Benneteau / Nicolas Mahut defeated Arnaud Clément / Sébastien Grosjean 6–4, 7–6(8–6)
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Jo-Wilfried Tsonga | 8 | 1 | ||
| Gilles Simon | 12 | 2 | ||
| Ivan Ljubičić | 28 | 3 | ||
| Juan Mónaco | 29 | 4 | ||
| Julien Benneteau | 33 | 5 | ||
| Paul-Henri Mathieu | 35 | 6 | ||
| Benjamin Becker | 38 | 7 | ||
| Albert Montañés | 40 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw: