List of Famous people named John

John Keill FRS was a Scottish mathematician, natural philosopher, and cryptographer who was an important defender of Isaac Newton.

John Robert Bayly A'Deane was a New Zealand first-class cricketer who played for Hawke's Bay in the 1890s.

John "Johnny" Roland Werket was an American speed skater. He competed in seven events in total at the 1948, 1952 and 1956 Winter Olympics with the best achievement of sixth place in the 1500 m in 1948. In 1948, he also won the 1500 m event and a silver allround medal at the world championships. This was the best achievement for an American skater, surpassed only in 1977 by Eric Heiden. In 1950, Werket finished in third place allround, but won the 500 m and 1,500 m events. In 1952, he finished second in the 500 m and 1,500 m and tenth overall.

John Winston was an English actor known for his appearances as "Lieutenant Kyle", the Transporter Chief and occasional bridge officer in the original Star Trek series.

John Reid, Baron Reid of Cardowan PC, is a British Labour Party politician. He was a Member of Parliament from 1987 to 2010, and served in the Cabinet under Prime Minister Tony Blair in a number of positions. He was Health Secretary from 2003 to 2005, Defence Secretary from 2005 to 2006, and Home Secretary from 2006 to 2007.