List of Famous people named John

John Hunyadi was a leading Hungarian military and political figure in Central and Southeastern Europe during the 15th century. According to most contemporary sources, he was the son of a noble family of Romanian ancestry. He mastered his military skills on the southern borderlands of the Kingdom of Hungary that were exposed to Ottoman attacks. Appointed voivode of Transylvania and head of a number of southern counties, he assumed responsibility for the defense of the frontiers in 1441.

John Rogers Galvin was an American army general who served as the sixth dean of the Fletcher School of Law and Diplomacy at Tufts University and a member of the U.S. Commission on National Security/21st Century.

Sir John Theodore Houghton was a Welsh atmospheric physicist who was the co-chair of the Intergovernmental Panel on Climate Change's (IPCC) scientific assessment working group which shared the Nobel Peace Prize in 2007 with Al Gore. He was the lead editor of first three IPCC reports. He was professor in atmospheric physics at the University of Oxford, former Director General at the Met Office and founder of the Hadley Centre.

John Boyd Dunlop was a Scottish inventor and veterinary surgeon who spent most of his career in Ireland. Familiar with making rubber devices, he re-invented pneumatic tyres for his child's tricycle and developed them for use in cycle racing. He sold his rights to the pneumatic tyres to a company he formed with the president of the Irish Cyclists' Association, Harvey Du Cros, for a small cash sum and a small shareholding in their pneumatic tyre business. Dunlop withdrew in 1896. The company that bore his name, Dunlop Pneumatic Tyre Company, was not incorporated until later using the name well known to the public, but it was Du Cros's creation.

John Cynn is an American professional poker player from Northbrook, Illinois. In 2018, he won the World Series of Poker (WSOP) Main Event for $8,800,000.

John Cyprian Phipps Williams is a New Zealand cardiologist known for discovering what is now called Williams syndrome in 1961.

John Adalbert Lukacs was a Hungarian-born American historian who wrote more than thirty books, including Five Days in London, May 1940 and A New Republic. He was a professor of history at Chestnut Hill College in Philadelphia from 1947 to 1994 and chaired that department from 1947 to 1974. He served as a visiting professor at Johns Hopkins University, Columbia University, Princeton University, La Salle University, Regent College in British Columbia and the University of Budapest and Hanover College. Lukacs was Roman Catholic. Lukacs described himself as a reactionary.

John Giorno was an American poet and performance artist. He founded the not-for-profit production company Giorno Poetry Systems and organized a number of early multimedia poetry experiments and events, including Dial-A-Poem. He became prominent as the subject of Andy Warhol's film Sleep (1964). He was also an AIDS activist and fundraiser, and a long-time practitioner of the Nyingma tradition of Tibetan Buddhism.

John Dewey was an American philosopher, psychologist, and educational reformer whose ideas have been influential in education and social reform. He was one of the most prominent American scholars in the first half of the twentieth century.

John Wesley Hyatt was an American inventor. He is mainly known for simplifying the production of celluloid.