Camila Giorgi defeated Karolína Plíšková in the final, 6–3, 7–5 to win the women's singles tennis title at the 2021 Canadian Open. It was her third career WTA Tour title, her first at the WTA 1000 level, and her first since Linz in 2018.
Bianca Andreescu was the defending champion from when the event was last held in 2019, but lost in the third round to Ons Jabeur.
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
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
Seventh qualifier
Eighth qualifier
References
External links Main draw Qualifying draw