Jean Poton de Xaintrailles (1390? – 7 October 1461), a minor noble of Gascon origin, was one of the chief lieutenants of Joan of Arc. He served as master of the royal stables, as royal bailiff in Berry and as seneschal of Limousin. In 1454 he was appointed a Marshal of France. Jean Poton was a leading figure on the French side in the Hundred Years War.
He fought at the battle of Verneuil in 1424. His participation, along with Joan of Arc, in the battle at Orléans in 1427 led to the end of the Siege of Orléans. He was badly wounded during this battle. He was captured at the battle of Cravant and later exchanged for John Talbot. Jean Poton fought numerous battles alongside Joan of Arc during the Loire Campaign. He remained a lifelong support for Joan of Arc. With La Hire, he even tried, albeit in vain, to rescue Joan after she was captured. Believing Joan was being held captive in Compiègne, Jean Poton captured it, only to learn that the prisoner had already been moved to Rouen.
He served with Joan of Arc at the Siege of Orléans, and the battles of Jargeau, Meung-sur-Loire, Beaugency and Patay. He raised the siege of Compiègne.
In the latter phase of the Hundred Years War he was active in the reconquest of Normandy and the conquest of Guyenne, often with Étienne de Vignolles, better known as La Hire, including the action at Gerbevoy. When the standing army was created in 1445, Xaintrailles was appointed to command one of the twelve companies of the new army.