81st Division or 81st Infantry Division may refer to:
; Infantry divisions :
*
81st (West Africa) Division (United Kingdom)
*
81st Division (People's Republic of China) 81st Division or 81st Infantry Division may refer to:
; Infantry divisions :
* 81st (West Africa) Division (United Kingdom)
* 81st Division (People's Republic of China)
* 81st Reserve Division (German Empire)
* 81st Division (Imperial Japanese ...
*
81st Reserve Division (German Empire)
The 81st Reserve Division (''81. Reserve-Division'') was a unit of the Imperial German Army in World War I. The division was formed at the end of December 1914 and organized over the next month, arriving in the line in early February 1915. It was ...
*
81st Division (Imperial Japanese Army)
*
81st Infantry Division (United States)
The 81st Readiness Division ("Wildcat") was a formation of the United States Army originally organized as the '81st Infantry Division' during World War I. After World War I, the 81st Division was allotted to the Organized Reserve as a "skeleton ...
*
81st Rifle Division
The 81st Rifle Division was an infantry division of the Red Army during World War II.
It was established at Lubny (Kiev or Kharkov Military Districts) around 1936. As 81st Mechanised Division, part of 4th Mechanised Corps, with 6th Army, Southw ...
(Soviet Union)
*
81st Guards Motor Rifle Division (Soviet Union)
See also
*
81st Brigade (disambiguation) 81st Brigade may refer to:
* 81st Mechanized Brigade (Romania), a unit of the Romanian Army
* 81st Mixed Brigade, a unit of the Spanish Republican Army
* 81st Brigade (United Kingdom), a formation of the British Army in the First World War
* 81st ...
*
81st Regiment (disambiguation) 81st Regiment may refer to:
* 81st Regiment of Foot (Aberdeenshire Highland Regiment), a unit of the British Army, 1777–1783
* 81st Regiment of Foot (Loyal Lincoln Volunteers), a unit of the British Army
* 81st Infantry Regiment (Philippine Com ...
*
81st Squadron (disambiguation)
{{mil-unit-dis