The 2009 Open 13 was a men's tennis tournament played on indoor hard courts. It was the 17th edition of the Open 13, and was part of the World Tour 250 tier of the 2009 ATP World Tour. It took place at the Palais des Sports in Marseille, France, from 16 February through 22 February 2009.

Before this year, the tournament was won by a home favorite on several occasions: Guy Forget in 1996, Fabrice Santoro in 1999, Arnaud Clément in 2006, and Gilles Simon in 2007. The record for most titles is three, won by the Swiss player Marc Rosset in its first two years in 1993 and 1994, as well as in 2000; the Swedish player Thomas Enqvist also won three, in 1997, 1998, and 2002. It is also one of the few ATP tournaments to have been won only by European players, with France with five (Forget, Santoro, Clément, Simon, and this year's winner Jo-Wilfried Tsonga), Sweden with 4 (Enqvist, Joachim Johansson), Switzerland with four (Rosset, Roger Federer), Germany with one (Boris Becker), Russia with one (Yevgeny Kafelnikov), Slovakia with one (Dominik Hrbatý), and Great Britain with one (Andy Murray).

Richard Gasquet was the sixth seed, but had to withdraw.

The following players received wildcards into the main draw:

The following players received entry from the qualifying draw:

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