Cassandra Delaney (born 8 September 1961) is an Australian actress best known for her marriage to and divorce from American singer John Denver.
Delaney started her career in show business in 1982 with a one-off single, "Boots"—a reworked country version of the 1966 Nancy Sinatra hit "These Boots Are Made for Walkin'"—before moving into acting. Delaney starred in a number of Australian films, one of which, Fair Game (1986), has become a cult classic.
Delaney married Denver in 1988, after a two-year courtship. Settling at Denver's home in Aspen, the couple had a daughter, Jesse Belle. She and Denver separated in 1991 and divorced in 1993. Of this, his second marriage, Denver wrote "before our short-lived marriage ended in divorce, she managed to make a fool of me from one end of the valley to the other".
Delaney's older sister is actress Delvene Delaney.