John King is the name of several notable individuals, including:

• John King , 19th century Australian explorer
• John King , White House correspondent for CNN
• John William King, one of the murderers of James Byrd, Jr.
• John King , author of novels such as The Football Factory
• John King , a spirit said to have been channelled by several mediums during the 19th century
• John, Lord King, a millionaire businessman famous for his reform and stewardship of British Airways through its privatisation.
• John King , president of the Erie Railroad 1884–1894.
• Dr John King , businessman, known for his work in pharmaceuticals at Warner Chilcott.