2008 Rogers Cup – Singles

Dinara Safina defeated Dominika Cibulková in the final, 6–2, 6–1 to win the women's singles tennis title at the 2008 Canadian Open.

Justine Henin was the reigning champion, but retired from professional tennis in May 2008.

Seeds
The top eight seeds received a bye into the second round. • # 🇷🇸 Ana Ivanovic (third round)

• # 🇷🇸 Jelena Janković (quarterfinals)

• # 🇷🇺 Maria Sharapova (third round, withdrew due to a right shoulder injury)

• # 🇷🇺 Svetlana Kuznetsova (quarterfinals)

• # 🇷🇺 Elena Dementieva (second round)

• # 🇷🇺 Anna Chakvetadze (third round)

• # 🇷🇺 Dinara Safina (champion)

• # 🇷🇺 Vera Zvonareva (second round)

• # Patty Schnyder (third round)

• # 🇫🇷 Marion Bartoli (semifinals)

• # 🇧🇾 Victoria Azarenka (semifinals)

• # 🇷🇺 Nadia Petrova (third round)

• # 🇷🇺 Maria Kirilenko (second round)

• # 🇮🇹 Francesca Schiavone (first round)

• # 🇮🇹 Flavia Pennetta (second round)

• # 🇨🇿 Nicole Vaidišová (first round)