2009 Women's British Open Squash Championship

The 2009 Women's International Sport Group British Open Squash Championships were held at the National Squash Centre in Manchester from 9–14 September 2009. The event was won for the fourth time by Rachael Grinham who defeated Madeline Perry in the final. The British Open would not be held again until 2012 following sponsorship problems.

Seeds
• # Nicol David

• #🇦🇺 Rachael Grinham

• #🏴󠁧󠁢󠁥󠁮󠁧󠁿 Alison Waters

• #🏴󠁧󠁢󠁥󠁮󠁧󠁿 Jenny Duncalf

• # Madeline Perry

• #🏴󠁧󠁢󠁥󠁮󠁧󠁿 Laura Massaro (née Lengthorn)

• #🇫🇷 Isabelle Stoehr

• # Vanessa Atkinson