2011 WSA World Series
The WSA World Series 2011 is a series of women's squash tournaments which are part of the Women's Squash Association World Tour for the 2011 squash season. The WSA World Series tournaments are some of the most prestigious events on the women's tour. The best-performing players in the World Series events qualify for the annual 2011 WSA World Series Finals tournament. Nicol David won her first WSA World Series Squash Finals trophy, beating Madeline Perry in the final.
WSA World Series Ranking Points
WSA World Series events also have a separate World Series ranking. Points for this are calculated on a cumulative basis after each World Series event.2011 Tournaments
| Tournament | Country | Location | Rank | Prize money | Date | 2011 Winner |
| Cayman Islands Open 2011 | Cayman Islands | World Series Gold | $68,500 | 4–9 April 2011 |  Nicol David | |
| Malaysian Open 2011 | Kuala Lumpur | World Series Gold | $68,500 | 19–23 July 2011 | Nicol David | |
| Australian Open 2011 | Canberra | World Series Gold | $74,000 | 8–14 August 2011 | Nicol David | |
| US Open 2011 | Philadelphia | World Series Gold | $60,000 | 1–6 October 2011 |  Laura Massaro | |
| Qatar Classic 2011 | Doha | World Series Gold | $74,000 | 16–21 October 2011 | Nicol David | |
| World Open 2011 | Rotterdam | World Open | $143,000 | 1–6 November 2011 | Nicol David | |
| Hong Kong Open 2011 | Hong Kong | World Series Gold | $74,000 | 14–20 November 2011 | Nicol David |
World Series Standings 2011
Bold – The first eight players present for the final| Final tournament | Country | Location | Prize money | Date | 2011 World Series Champion |
| WSA World Series Finals 2011 | Queen's Club, London | $50,000 | 4–8 January 2012 | Nicol David |