John Quincy Loomis (c. 1824 – December 4, 1869) was a Confederate States Army officer who held brigade command during the American Civil War. A veteran of the Mexican–American War, Loomis became a small-town lawyer during the antebellum period. An advocate of secession, he led the local militia company in the first weeks of the Siege of Pensacola. After the start of the American Civil War, Loomis became commander of an artillery company and then rose to battalion command in late 1861. Before the Battle of Shiloh, he was made colonel of the . Wounded while leading the regiment at Shiloh, Loomis commanded a brigade at the beginning of the Battle of Stones River. However, he was wounded at the beginning of the Confederate attack at Stones River and resigned from the army afterwards. Returning