Debra Forster (born 25 August 1961) is an Australian former swimmer who won a gold medal in the 100m backstroke event at the 1978 Commonwealth Games in Edmonton, Canada.

She "burst into international swimming" in January 1978 when she set an Australian record in the 100m backstroke of 1:04.87 at Melbourne's Olympic stadium.

[2] While training for the games in Honolulu, she had decided that she would quit swimming upon her return home, yet had a change of heart upon winning a gold medal in the 1978 Commonwealth 100m backstroke event.

[3] During her time in Edmonton, she got tonsillitis and had to isolate in bed for several days, although it wasn't believed likely to have any effect on her performance.

[4] In January 1979, she set an Australian residential and Victorian state 100m backstroke record with a time of 1:04.64, beating her own previous best by 0.23 seconds.