The 2021 Phillip Island Trophy is a tournament on the 2021 WTA Tour, one of six events in the 2021 Melbourne Summer Series.

It was played on outdoor hard courts in Melbourne, Australia.

This tournament took place simultaneously with the second week of the 2021 Australian Open.

[1] *per team a Rankings are as of 8 February 2021 The following players received wildcards into the singles main draw: The following players used a protected ranking to enter the singles main draw: The following players received entry from the qualifying draw: The following players received entry as lucky losers: b Rankings are as of 8 February 2021.

The following pair received a wildcard into the doubles main draw: