List of Famous people named John

John Brite Bowker is an American former professional baseball outfielder and first baseman. He has played in Major League Baseball (MLB) for the San Francisco Giants, Pittsburgh Pirates, and Philadelphia Phillies and in Nippon Professional Baseball (NPB) for the Yomiuri Giants and Tohoku Rakuten Golden Eagles. Bowker stands 6 feet 1 inch (1.85 m) tall and weighs 205 pounds (93 kg); he bats and throws left-handed.

John Justin was a British stage and film actor.

John Troglita was a 6th-century Byzantine general. He participated in the Vandalic War and served in North Africa as a regional military governor during the years 533–538, before being sent east to the wars with the Sassanid Persians. As dux Mesopotamiae, Troglita distinguished himself in several battles, and was noticed by agents of the Byzantine emperor, Justinian I. In summer 546, Justinian chose John Troglita to assume overall command of Byzantine forces in Africa, where a succession of revolts by the indigenous Moorish tribes and within the imperial army itself had seriously reduced the Byzantine position. Troglita quickly secured an initial victory in the winter of 546/547 against the Moors of Byzacena, but was defeated in summer 547 by the tribes of Tripolitania, and Africa was once again laid open to destructive raids. Troglita reorganized his army and secured the assistance of some tribal leaders, and confronted and decisively defeated the tribal coalition at the Fields of Cato in summer 548. This victory spelled the end of the Moorish revolt and heralded an era of peace for Africa. Troglita was also involved in the Gothic War, twice sending some of his troops to Italy to assist against the Ostrogoths.

John II, called the Great or the Faithless, was King of Aragon from 1458 until his death. As the husband of Queen Blanche I of Navarre, he was King of Navarre from 1425. He was the son of King Ferdinand I of Aragon and Eleanor of Alburquerque. John was also King of Sicily from 1458 to 1468.

John III was King of Sweden from 1569 until his death. He was the son of King Gustav I of Sweden and his second wife Margaret Leijonhufvud. He was also, quite autonomously, the ruler of Finland, as Duke John from 1556 to 1563. In 1581 he assumed also the title Grand Prince of Finland. He attained the Swedish throne after a rebellion against his half-brother Eric XIV. He is mainly remembered for his attempts to close the gap between the newly established Lutheran Church of Sweden and the Catholic church, as well as his conflict with, and murder of, his brother.

John Henry of Luxembourg, a member of the House of Luxembourg, was Count of Tyrol from 1335 to 1341 and Margrave of Moravia from 1349 until his death.

Chevalier John Taylor (1703–1772) was an early British eye surgeon, self-promoter and medical charlatan of 18th-century Europe. He was noted by Samuel Johnson, and associated with the surgical mistreatment of George Frideric Handel, Johann Sebastian Bach, and perhaps hundreds of others.

John Machin was a professor of astronomy at Gresham College, London. He is best known for developing a quickly converging series for Pi in 1706 and using it to compute Pi to 100 decimal places.

John of Islay was the Lord of the Isles (1336–1386) and chief of Clan Donald. In 1336, he styled himself Dominus Insularum, "Lord of the Isles"; because this is the first ever recorded instance of the title in use, modern historians count John as the first of the later medieval Lords of the Isles, although this rather broad Latin style corresponds roughly with the older Gaelic title Rí Innse Gall, in use since the Viking Age, and for instance, the even more similar Latin title dominus de Inchegal, applied to Raghnall Mac Somhairle in the mid-12th century. In fact John is actually styled Rí Innsi Gall or King of the Isles shortly after his death in a contemporary entry in the Irish Annals of Ulster.