List of Famous people named John

John Doukas was a member of the Doukas family, a relative of Byzantine emperor Alexios I Komnenos and a senior military figure of his reign. As governor of Dyrrhachium, he secured the imperial possessions in the western Balkans against the Serbs. Appointed megas doux, he scoured the Aegean of the fleets of the Turkish emir Tzachas, suppressed rebellions in Crete and Cyprus, and then recovered much of the western coast of Anatolia for Byzantium.

John Beaumont, 4th Baron Beaumont KG (1361–1396) was an English military commander and Admiral who served in the Hundred Years' War against the partisans of Antipope Clement VII.

Field Marshal Sir John Fox Burgoyne, 1st Baronet was a British Army officer. After taking part in the Siege of Malta during the French Revolutionary Wars, he saw action under Sir John Moore and then under the Duke of Wellington in numerous battles of the Peninsular War, including the Siege of Badajoz and the Battle of Vitoria. He served under Sir Edward Pakenham as chief engineer during the War of 1812. He went on to act as official advisor to Lord Raglan during the Crimean War advocating the Bay of Kalamita as the point of disembarkation for allied forces and recommending a Siege of Sevastopol from the south side rather than a coup de main, so consigning the allied forces to a winter in the field in 1854.