1st Infantry Battalion
1st Infantry Battalion may refer to:
American Civil War battalions
Confederate Army
Union Army
United States Army
Other Battalions
- 1st Canadian Infantry Battalion (disambiguation)
- 2/1st Battalion (Australia)
- 1st Somerset Militia
- 1st New Guinea Infantry Battalion
- 1st Infantry Battalion (KNIL)
- 1st Battalion, 4th Madras Native Infantry
- 1st Battalion, 16th Bengal Native Infantry
- 1st Battalion, 24th Bengal Native Infantry
- 1st Battalion, 30th Bengal Native Infantry
- 1st Battalion, 33rd Bengal Native Infantry
- 1st Battalion of The Frontier Force Regiment
- 1st Independent Motorized Infantry Battalion
- 1st Gwent Battalion
- 1st London Welsh Battalion
- 1st (City of Bristol) Volunteer Battalion, Gloucestershire Regiment
- 1st Colonial Infantry Battalion