Garbiñe Muguruza defeated Simona Halep in the final, 6–1, 6–0 to win the women's singles tennis title at the 2017 Cincinnati Masters. By losing in the final, Halep failed to take advantage of her third opportunity in 2017 to take over the WTA No. 1 singles ranking when the top ranking was only one match win away.
Karolína Plíšková was the defending champion, but lost in the semifinals to Muguruza.
Seeds The top eight seeds received a bye into the second round.
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
Qualifying
Seeds
Qualifiers
Lucky losers Natalia Vikhlyantseva
Draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
Seventh qualifier
Eighth qualifier
Ninth qualifier
Tenth qualifier
Eleventh qualifier
Twelfth qualifier
References
Main Draw Qualifying Draw