Kerri Ann Pottharst OAM (born 25 June 1965) is an Australian former professional beach volleyball player and Olympic gold medallist.

In addition to her previous volleyball commitments, Pottharst is an accomplished speaker, MC and presenter.

She runs corporate team-building programs, and commentates Indoor and Beach Volleyball.

A serious knee injury in 1992 forced her off the hard court and she began playing beach volleyball.

Cook and Pottharst were included in the Fédération Internationale de Volleyball's Team of the Decade.