Cosh joined Fever in 2020 playing 44 games including five matches during the 2023 campaign.
General Manager Sue Gaudion thanked Cosh for her service to the Club and wished her well for the future.
“Coshy will always hold a special place at Fever as maiden premiership player and the important role she played in that historic moment for our Club,” Gaudion said.
“She will always be part of the Fever Family and on behalf of the Green Army I want to thank her for her dedication and commitment to the Club.”
