| Unit Name: | 15th Louisiana Infantry Regiment |
| Dates: | 16 June 1861 – 9 April 1865 |
| Allegiance: | Louisiana |
| Type: | Infantry |
| Size: | Regiment |
| Command Structure: | 2nd Louisiana Brigade (Starke's, Nicholls', Stafford's, York's) |
| Notable Commanders: | Edmund Pendleton |
| Battles: |
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The 15th Louisiana Infantry Regiment was a unit of volunteers recruited in Louisiana that fought in the Confederate States Army during the American Civil War. Formed in June 1861 as the 2nd Regiment, Polish Brigade, the unit was sent to fight in the Eastern Theater of the American Civil War. As the 3rd Louisiana Infantry Battalion, the unit served at Beaver Dam Creek and Glendale. After two companies from the 7th Louisiana Infantry Battalion were added in July 1862, the unit reorganized as the 15th Louisiana Infantry Regiment. It joined the 2nd Louisiana Brigade and fought at Cedar Mountain, Second Bull Run, Antietam, and Fredericksburg in 1862. It served at Chancellorsville, Second Winchester, Gettysburg, and Mine Run in 1863. The regiment fought at the Wilderness, Spotsylvania, Cold Harbor, Monocacy, Third Winchester, Fisher's Hill, Cedar Creek, and Petersburg in 1864. A handful of survivors surrendered at Appomattox in 1865.
. Mark M. Boatner III . The Civil War Dictionary . 1959 . David McKay Company Inc. . New York, N.Y. . 0-679-50013-8 .