The 2004 Vancouver Women's Open was a women's tennis tournament played on outdoor hard courts that was part of the Tier V category of the 2004 WTA Tour. It was the third edition of the tournament and took place in Vancouver, Canada from 9 August until 15 August 2004.
Nicole Vaidišová won the singles edition, whilst the American team of Bethanie Mattek and Abigail Spears emerged victorious in the doubles category.[1]
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 France | Marion Bartoli | 56 | 1 | |
 Venezuela, Bolivarian Republic of | Milagros Sequera | 75 | 2 | |
 Russian Federation | Alina Jidkova | 77 | 3 | |
| Laura Granville | 81 | 4 | ||
| Marissa Irvin | 83 | 5 | ||
 Italy | Rita Grande | 85 | 6 | |
| Anna-Lena Grönefeld | 88 | 7 | ||
| Lindsay Lee-Waters | 94 | 8 |
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
Nicole Vaidišová defeated 
Laura Granville, 2–6, 6–4, 6–2
Bethanie Mattek / Abigail Spears defeated 
Els Callens / Anna-Lena Grönefeld, 6–3, 6–3
