| Unit Name: | 1st Battalion, Virginia Volunteer Infantry |
| Dates: | May 1861 - April 1865 |
| Country: | Confederacy |
| Allegiance: | Confederate States of America |
| Role: | Infantry |
| Nickname: | Irish Battalion |
| Battles: | American Civil War |
| Disbanded: | April 1865 |
The 1st Battalion, Virginia Infantry Regulars, also known as the Irish Battalion, was raised in Virginia for service in the Confederate States Army during the American Civil War and, served as infantry. It fought mostly with the Army of Northern Virginia.
The battalion was organized in May 1861, with men from the city of Richmond and Hanover County in five companies. It moved to western Virginia and participated in Lee's Cheat Mountain Campaign, then fought at First Kernstown, McDowell, and in Jackson's Valley Campaign. The unit was then assigned to General J.R. Jones' Brigade and was involved in many conflicts of the Army of Northern Virginia from the Seven Day's Battles to Fredericksburg. Later it was assigned to General Headquarters and in November 1864, Provost Guard.
It lost twenty-five percent of the 187 engaged at First Kernstown, had 3 wounded during the Seven Days' Battles and 3 killed and 19 wounded at Second Manassas. The unit surrendered 18 officers and 120 men.
Majors D.B. Bridgford, John D. Munford, and John Seddon were in command.