5th Regiment

5th Regiment or 5th Infantry Regiment may refer to:

Infantry regiments

 * 5th Aviation Regiment (Australia), a unit of the Australian Army
 * 2/5th Armoured Regiment (Australia), a unit of the Australian Army
 * 5th Foot Guards (German Empire), a unit of the Imperial German Army
 * 5th Infantry Regiment (Greece), a unit of the Greek Army
 * 5th Archipelago Regiment, a unit of the Greek Army
 * 5/42 Evzone Regiment, a unit of the Greek Army
 * 5th Guards Grenadiers, a unit of the Imperial German Army
 * 5th Regiment of Foot, a unit of the British Army
 * 5th Dragoon Guards, a unit of the British Army
 * 5th Bengal European Regiment, a unit of the British East India Company
 * 5th Marine Regiment (United States), a unit of the United States Marine Corps
 * 5th Infantry Regiment (United States), a unit of the United States Army
 * Fifth Regiment, a unit loyal to the Spanish republic at the beginning of the Spanish Civil War

American Revolutionary War regiments

 * 5th Continental Regiment
 * 5th Connecticut Regiment
 * 5th Maryland Regiment
 * 5th Massachusetts Regiment
 * 5th New York Regiment
 * 5th North Carolina Regiment
 * 5th Pennsylvania Regiment
 * 5th South Carolina Regiment
 * 5th Virginia Regiment

American Civil War regiments

 * 5th Iowa Volunteer Infantry Regiment
 * 5th Michigan Volunteer Infantry Regiment
 * 5th Minnesota Volunteer Infantry Regiment
 * 5th New York Veteran Volunteer Infantry Regiment
 * 5th United States Colored Infantry Regiment
 * 5th West Virginia Volunteer Infantry Regiment
 * 5th Wisconsin Volunteer Infantry Regiment
 * 5th Missouri Infantry Regiment (disambiguation)

Artillery regiments

 * 5th Medium Regiment, Royal Canadian Artillery, a unit of the Canadian Army
 * 5th Regiment Royal Artillery, a unit of the United Kingdom Army
 * 5th (British Columbia) Field Regiment, Royal Canadian Artillery, a unit of the Canadian Army

Cavalry regiments

 * 5th Cavalry Regiment, a unit of the United States Army
 * 5th Lithuanian Vanguard Regiment

American Civil War regiments

 * 5th Regiment Illinois Volunteer Cavalry
 * 5th Regiment Iowa Volunteer Cavalry
 * 5th Michigan Volunteer Cavalry Regiment
 * 5th West Virginia Volunteer Cavalry Regiment

Other regiments

 * 5th Air Reconnaissance Regiment, a unit of Yugoslav Air Force
 * 5th Royal Tank Regiment, an armoured unit of the United Kingdom Army