2011 Rogers Cup – Women's singles
The 2011 Rogers Cup women's singles was a tennis tournament played on outdoor hard courts in Canada. World No. 1 Caroline Wozniacki was the defending champion, but lost to Roberta Vinci in the second round. Serena Williams won her second Rogers Cup title, by beating Samantha Stosur 6–4, 6–2 in the final. Seeds. The top eight seeds receive a bye into the second round.