The 2009 Warsaw Open was a women's tennis tournament played on outdoor clay courts. It was the 13th edition of the Warsaw Open, part of the Premier-level tournaments of the 2009 WTA Tour. It took place at the Legia Tennis Centre in Warsaw, Poland, from 18 May until 23 May 2009. Unseeded Alexandra Dulgheru, who entered the main draw as a qualifier, won the singles title.

Finals

Singles

🇷🇴 Alexandra Dulgheru defeated 🇺🇦 Alona Bondarenko, 7–6(7–3), 3–6, 6–0

Doubles

🇺🇸 Raquel Kops-Jones / 🇺🇸 Bethanie Mattek-Sands defeated 🇨🇳 Yan Zi / 🇨🇳 Zheng Jie, 6–1, 6–1

Entrants

Seeds

Other entrants

The following players received wildcards into the main draw: The following players received entry from the qualifying draw: The following players received entry as lucky losers: