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] 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