The veteran star passed away on Sunday (18Dec11) in Los Angeles, according to Variety.
Avedon Siegel was married to actor Dan Mathews, photographer Richard Avedon and later to Dirty Harry director Don Siegel, with whom she adopted four children before their divorce.
While she was married to Avedon, the couple's friend - playwright/screenwriter Leonard Gershe - based his popular musical Funny Face loosely on their relationship.
Avedon Siegel started her career on Broadway, touring with Mae West, before going on to star in films such as The High and the Mighty with John Wayne and Stanley Donen's Deep in My Heart.
Her TV roles included appearances in Big Town, The Ford Television Theatre and Climax!, and her last big screen appearance came in John Cassavetes' 1984 film, Love Streams.