| Women's World Open 2011 | |
| Number: | 28 |
| Series: | WSA World Squash Championship |
| Location: | Rotterdam, Netherlands |
| Dates: | 1–6 November 2011 |
| Category: | WSA World Open |
| Prize Money: | $143,000 |
| Champion: | Nicol David |
| Runner-Up: | Jenny Duncalf |
| Semi-Finalists: | Natalie Grinham Samantha Terán |
| Prev: | 2010  |
| Next: | 2012 |
The 2011 Women's World Open Squash Championship is the women's edition of the 2011 World Open, which serves as the individual world championship for squash players. The event took place at the New Luxor Theatre in Rotterdam in the Netherlands from 1 to 6 November. Nicol David won her sixth World Open trophy, beating Jenny Duncalf in the final.
For 2011, the prize purse was $143,000. The prize money and points breakdown is as follows:[1]
| width=200 colspan=1 bgcolor=#dfe2e9 | Event | width=80 bgcolor=lime | W | width=85 bgcolor=#D8BFD8 | F | width=85 bgcolor=#FFFF00 | SF | width=85 bgcolor=#ffebcd | QF | width=85 bgcolor=#afeeee | 2R | width=85 bgcolor=#afeeee | 1R |
| Points (WSA) | 5300 | 3630 | 2150 | 1150 | 575 | 330 | |||||||
| Prize money | $21,760 | $14,720 | $8,640 | $5,120 | $2,880 | $1,600 |