The FINA 10 km Marathon Swimming World Cup 2009 occurred in 2009, and was the third edition of the 10K-only circuit. The 2009 edition included 13 races. Races are held in open water: generally lakes, rivers or the sea; with prize money and points towards the overall world cup title made available at each location.
| Date | City | County |
|---|---|---|
| January 24 | Santos, Sao Paulo | Brazil |
| June 29 | Setúbal | Portugal |
| July 23 | Lac St-Jean, Roberval | Canada |
| August 8 | Varna | Bulgaria |
| August 12 | Lake Annecy, Annecy | France |
| August 15 | London | Great Britain |
| August 29 | Copenhagen | Denmark |
| September 7 | Manhattan Island, New York City | United States |
| September 12 | Cancún | Mexico |
| September 26 | Xin Jinhe, Shantou, Guangong | China |
| October 4 | Repulse Bay, Hong Kong | China |
| October 17 | Dubai | United Arab Emirates |
| October 21 | Sharjah | United Arab Emirates |