The 2011 Canada Masters (also known as the 2011 Rogers Cup presented by National Bank and the 2011 Rogers Cup for sponsorship reasons) was a tennis tournament played on outdoor hard courts in Canada. It was the 122nd edition of the Canada Masters (110th for the women) and was part of the ATP World Tour Masters 1000 of the 2011 ATP World Tour and the Premier Series of the 2011 WTA Tour. The women's and legends event was held at the Rexall Centre in Toronto, Canada, and the men's event took place at the Uniprix Stadium in Montreal, Canada, from August 8 to August 14.
See main article: 2011 Rogers Cup – Men's singles. 
Novak Djokovic defeated 
Mardy Fish, 6–2, 3–6, 6–4
See main article: 2011 Rogers Cup – Women's singles. Serena Williams defeated 
Samantha Stosur, 6–4, 6–2
See main article: 2011 Rogers Cup – Men's doubles. 
Michaël Llodra / Nenad Zimonjić defeated Bob Bryan / Mike Bryan, 6–4, 6–7(5–7), [10–5]
See main article: 2011 Rogers Cup – Women's doubles. Liezel Huber / Lisa Raymond defeated 
Victoria Azarenka / 
Maria Kirilenko, walkover [2]
| Stage | Men's singles[3] | Men's doubles | Women's singles[4] | Women's doubles |
|---|---|---|---|---|
| Champion | 1000 | 900 | ||
| Runner up | 600 | 620 | ||
| Semifinals | 360 | 395 | ||
| Quarterfinals | 180 | 225 | ||
| Round of 16 | 90 | 125 | ||
| Round of 32 | 45 | 10 | 70 | 1 |
| Round of 64 | 10 | – | 1 | – |
| Qualifier | 25 | 30 | ||
| Qualifying Finalist | 14 | 12 | ||
| Qualifying 1st round | - | 1 | ||
All money is in C$:
| Stage | Men's singles[5] | Men's doubles | Women's singles | Women's doubles |
|---|---|---|---|---|
| Champion | $450,000 | $140,000 | $360,000 | $100,000 |
| Runner up | $224,000 | $70,000 | $180,000 | $50,000 |
| Semifinals | $114,825 | $35,500 | $90,000 | $25,000 |
| Quarterfinals | $59,700 | $18,470 | $41,450 | $12,500 |
| Round of 16 | $31,280 | $9,690 | $20,550 | $6,250 |
| Round of 32 | $16,370 | $5,090 | $10,575 | $3,170 |
| Round of 64 | $8,570 | – | $5,500 | – |
| Final round qualifying | $2,000 | $1,995 | ||
| First round qualifying | $1,000 | $1,035 |
| Country | Player | Rank | Seed | |
|---|---|---|---|---|
| Serbia | 1 | 1 | ||
 Spain | 2 | 2 | ||
| 3 | 3 | |||
 United Kingdom | 4 | 4 | ||
| France | 7 | 5 | ||
| 8 | 6 | |||
 Czech Republic | 9 | 7 | ||
| Spain | 10 | 8 | ||
| France | 11 | 9 | ||
| France | 13 | 10 | ||
| Russian Federation | 14 | 11 | ||
| Serbia | 15 | 12 | ||
| France | 16 | 13 | ||
| 17 | 14 | |||
| Spain | 19 | 15 | ||
 Argentina | 20 | 16 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
See main article: 2011 Rogers Cup – Men's singles qualifying.
Alex Bogomolov Jr.
Flavio Cipolla
Alejandro Falla Michael Russell Michael YaniThe following players received entry from a lucky loser spot:
David Ferrer (wrist injury) Guillermo García López (appendicitis)
Xavier Malisse (personal reason)
Jürgen Melzer (quad injury)
Peter Polansky (groin injury) Milos Raonic (hip injury) [6] Andy Roddick (oblique injury)
Robin Söderling (wrist injury) [7]| Country | Player | Rank | Seed |
|---|---|---|---|
| 1 | 1 | ||
| Belgium | 2 | 2 | |
| Russian Federation | Vera Zvonareva | 3 | 3 |
| Belarus | 4 | 4 | |
| Russian Federation | 5 | 5 | |
 China | 6 | 6 | |
| Czech Republic | 7 | 7 | |
| Italy | Francesca Schiavone | 8 | 8 |
| France | 9 | 9 | |
| Australia | Samantha Stosur | 10 | 10 |
| Andrea Petkovic | 11 | 11 | |
| Russian Federation | Svetlana Kuznetsova | 12 | 12 |
 Poland | Agnieszka Radwańska | 13 | 13 |
| Russian Federation | Anastasia Pavlyuchenkova | 14 | 14 |
| Serbia | Jelena Janković | 15 | 15 |
 Slovakia | Dominika Cibulková | 16 | 16 |
The following players received wildcards into the singles main draw
The following players received entry from the qualifying draw:
See main article: 2011 Rogers Cup – Women's singles qualifying.
Gréta Arn Iveta Benešová Alberta Brianti
Simona Halep Bojana Jovanovski María José Martínez Sánchez
Galina Voskoboeva Zhang Shuai Zheng JieThe following players received entry from a lucky loser spot:
Venus Williams (Viral Illness) [8]