Barry Diller (born 2 February 1942) is the Chairman and Chief Executive Officer of IAC/InterActiveCorp and the media executive responsible for the creation of Fox Broadcasting Company and USA Broadcasting.

Barry Diller was born February 2, 1942 in San Francisco, California, where he was raised and began his career through a family connection in the mailroom of the William Morris Agency after dropping out of UCLA after one semester. In 2001 he put to bed rumors about his alleged homosexuality and married fashion designer Diane von Fürstenberg. He is a life-long Democrat and supporter of progressive causes.

He was hired by ABC in 1966 and was soon placed in charge of negotiating broadcast rights to feature films. He was promoted to vice president in charge of feature films and program development in 1969. In this position, Diller created the ABC Movie of the Week, pioneering the concept of the made-for-television movie through a regular series of 90-minute films produced exclusively for television.