Keith Rupert Murdoch, AC, KSG (born 11 March 1931) is an American media mogul who was born and raised in Australia. Murdoch became managing director of Australia's News Limited, inherited from his father, in 1952. He is the founder, Chairman and CEO of global media holding company the News Corporation, the world's second-largest media conglomerate.

In the 1950s and '60s, he acquired various newspapers in Australia and New Zealand, before expanding into the United Kingdom in 1969, taking over the News of the World followed closely by The Sun. He moved to New York in 1974 to expand into the US market and became a naturalised US citizen in 1985. In 1981, he bought The Times, his first British broadsheet.

In 1986, keen to adopt newer electronic publishing technologies, he consolidated his UK printing operations in Wapping, causing bitter industrial disputes. His News Corporation acquired Twentieth Century Fox (1985), HarperCollins (1989) and The Wall Street Journal (2007). He formed BSkyB in 1990 and during the 1990s expanded into Asian networks and South American television. By 2000 Murdoch's News Corporation owned over 800 companies in more than 50 countries with a net worth of over $5 billion.

In July 2011 Murdoch faced allegations that his companies, including the News of the World, owned by News Corporation, had been regularly hacking the phones of celebrities, royalty and public citizens. He faces police and government investigations into bribery and corruption by the British government and FBI investigations in the US.