66th Regiment
# 66th Regiment

66th Regiment may refer to:

* 66th (Berkshire) Regiment of Foot, an infantry unit of the British Army
* 66th (Leeds Rifles) (West Yorkshire Regiment) Heavy Anti-Aircraft Regiment, Royal Artillery, British Army
* 66th Punjabis, a unit of the British Indian Army
* 66th Infantry Regiment (United States), a unit of the United States Army
* 66th Armor Regiment, an armoured unit of the US Army
* 66th Armoured Regiment (India), an armoured unit of the Indian Army
* 66th Infantry Regiment (Imperial Japanese Army), a unit of the Imperial Japanese Army

## American Civil War regiments

* 66th Indiana Infantry Regiment, Union Army
* 66th Illinois Volunteer Infantry Regiment, Union Army
* 66th New York Volunteer Infantry, Union Army
* 66th Ohio Infantry, Union Army
