Antoine Guillaume Delmas

Antoine-Guillaume Maurailhac Delmas de La Coste Delmas (; 3 January 1766 – 30 October 1813) was a French military officer who served in the French Revolutionary Wars and Napoleonic Wars. Delmas was killed at the Battle of Leipzig.

Delmas was born in Argentat in the Kingdom of France on 3 January 1766. He was wounded at the Battle of Leipzig and later died on 30 October 1813 in Leipzig.

By June 1791, Delmas was a lieutenant in the gendarmerie of his home département of Corrèze. In September of that year he volunteered for the army, becoming a lieutenant colonel of the 1st Battalion of Volunteers of Corrèze. Delmas saw combat in 1799 at Pastrengo during the Battle of Verona and at the Battle of Magnano. Following these battles, Delmas was sent back to the Army of the Rhine. He later fought at the Battle of the Katzbach and then the Battle of Leipzig. During the Battle of Leipzig a cannonball struck him in the right hip and he was taken to the hospital, dying of his wounds two weeks later.