The 2009 ADAC Zurich 24 Hours of Nürburgring is the 37th running of the 24 Hours of Nürburgring. It took place over May 23–24, 2009. Manthey Racing's #1 Porsche claimed honours in the SP7 class and was the overall victor, completing 155 laps over the 24 hours. Team Abt Sportsline and their #97 Audi claimed second overall and finished as top runner in the SP9 GT3 class. 118 of the 170 starters were classified.

Manthey Racing GmbH is a German auto racing team established in 1996 by former race car driver Olaf Manthey. Manthey Racing is currently competing in the Nürburgring Endurance Series, Deutsche Tourenwagen Masters, and the GT2 European Series, and is also responsible for Porsche's factory efforts in the FIA World Endurance Championship. Working with Porsche sports cars for most of their history, the team has been strongly linked with the German manufacturer, being purchased by Porsche for a 51% majority stake in 2013, and later becoming a full motorsport partner in 2021.