Keith Rupert Murdoch, AC, KSG (born 11 March 1931) is an Australian American media mogul.

Murdoch becomes 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 News Corporation, the world's second-largest media conglomerate and its successors News Corp and 21st Century Fox after the conglomerate split on June 28, 2013.

In the 1950s and '60s, he acquires 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 moves to New York in 1974 to expand into the US market, but retains interests in Australia and Britain.

In 1981, he buys The Times, his first British broadsheet, and becoms a naturalized US citizen in 1985.

In 1986, keen to adopt newer electronic publishing technologies, he consolidates his UK printing operations in Wapping, causing bitter industrial disputes.

His News Corporation acquires Twentieth Century Fox (1985), HarperCollins (1989) and The Wall Street Journal (2007).

He forms BSkyB in 1990 and during the 1990s expands into Asian networks and South American television.

By 2000, Murdoch's News Corporation owns over 800 companies in more than 50 countries with a net worth of over $5 billion.

In July 2011, Murdoch faces 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.

On July 21, 2012, Murdoch resigns as a director of News International.