John Lawrence Rapier (June 15, 1842 - May 7, 1905) was an American Civil War soldier and businessman. A native of Mobile, Alabama, he saw action as a sergeant major in the Seven Days Battles, and later became a second lieutenant in the Confederate States Marine Corps. He was captured at Fort Gaines, Mobile Bay, Alabama, August 5, 1864, and paroled at Nunna Hubba Bluff, Alabama, May 10, 1865.
Rapier was born in Spring Hill, a suburb of Mobile, Alabama, the son of Thomas Gwynn Rapier and Evalina Senac. His maternal uncle was Confederate Paymaster Felix Senac. He was also related to Angela S. Mallory, wife of Secretary of the Confederate Navy, Stephen R. Mallory. In 1857 he worked as a clerk in New Orleans until the outbreak of the American Civil War.
Rapier was enlisted from Louisiana as a private in Captain Henri St. Paul's Company (First Company) of the Louisiana Foot Rifles on April 22, 1861. This was later folded into Company A, 7th Battalion, Louisiana Infantry. Their first assignment was Pensacola, Florida, where they arrived on April 28 and stayed until mid-September. They were then transferred to Richmond, Virginia, where they encamped for several months in the vicinity of Centerville. The battalion was then assigned to Brigadier General Richard H. Anderson's Brigade on the Virginia Peninsula in May 1862.
After the war, he married the daughter of a former commander, Regina St. Paul, in 1866, and after her death, he married Regina Demouy.