The Phillip Island Trophy was a new addition to the WTA Tour in 2021.
Daria Kasatkina won the title, defeating Marie Bouzková in the final, 4–6, 6–2, 6–2.
Seeds The top eight seeds received a bye into the second round.
Sofia Kenin (second round) Bianca Andreescu (semifinals) Johanna Konta (withdrew) Petra Martić (quarterfinals) Wang Qiang (third round) Zhang Shuai (withdrew) Anastasia Pavlyuchenkova (third round) Danielle Collins (semifinals)
Sloane Stephens (first round) Caroline Garcia (first round) Zheng Saisai (first round) Nadia Podoroska (first round) Marie Bouzková (final) Anastasija Sevastova (first round) Alizé Cornet (first round) Rebecca Peterson (quarterfinals)
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
Qualifying
Seeds
Qualifiers
Lucky losers
Draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
Seventh qualifier
Eighth qualifier
References
External links Main draw Qualifying draw