2009 Gerry Weber Open

The 2009 Gerry Weber Open was a men's tennis tournament played on outdoor grass courts. It was the 17th edition of the event known that year as the Gerry Weber Open, and was part of the ATP World Tour 250 series of the 2009 ATP World Tour. It took place at the Gerry Weber Stadion in Halle, North Rhine-Westphalia, Germany, from June 6 through June 14, 2009.

2009 Gerry Weber Open
Date	June 6 – June 14
Edition	17th
Category	ATP World Tour 250
Surface	Grass / Outdoor
Location	Halle, Germany
Venue	Gerry Weber Stadion
Champions
Singles
Tommy Haas
Doubles
Christopher Kas / Philipp Kohlschreiber

Former World No. 2 Tommy Haas won his first title since February 2007 over Novak Djokovic in the final

2008 Queen's Club runner-up Novak Djokovic lost his second career final on grass

The singles draw featured Miami, Monte Carlo and Rome finalist, Dubai and Belgrade titlist Novak Djokovic and 2008 Davis Cup winner, Brisbane runner-up Fernando Verdasco. Also seeded were Johannesburg and Marseille winner Jo-Wilfried Tsonga, Munich champion Tomáš Berdych, Dmitry Tursunov, Jürgen Melzer and Rainer Schüttler. Association of Tennis Professionals (ATP) No. 2 Roger Federer, reigning US Open champion, winner of the Madrid Open and runner-up in the 2009 Australian Open, was initially in the draw as the top seed, but pulled out before playing a match, citing fatigue after winning the French Open the previous week.

The doubles draw was led by 2009 French Open champions, US Open, Rotterdam, and 2008 Halle finalists Lukáš Dlouhý and Leander Paes. Also present were Acapulco winners František Čermák and Michal Mertiňák, Martin Damm and Robert Lindstedt, and Philipp Petzschner and Alexander Peya.

The singles event was won by German Tommy Haas, who had earned a wildcard entry into the main draw, over Djokovic in three sets. The doubles were won by the unseeded German pair of Christopher Kas and Philipp Kohlschreiber in straight sets over the wildcard pair of German Andreas Beck and Swiss Marco Chiudinelli.