Thirteenth Army or 13th Army may refer to:
*
Thirteenth Army (Japan)
, image=
, caption=
, dates= September 23, 1939 - August 15, 1945
, country= Empire of Japan
, allegiance=
, branch= Imperial Japanese Army
, type= Infantry
, role= Corps
, garrison=Shanghai
, nickname=
, battles=
, not ...
*
Japanese Thirteenth Area Army
*
13th Army (Russian Empire)
The 13th Army was a field army of the Imperial Russian Army during World War I.
The headquarters of the 13th Army was formed on 16 May 1915. The Army served as a link between the Northwestern and Southwestern fronts. When in August 1915, the N ...
, unit in World War I
*
13th Army (RSFSR), a unit in the Russian Civil War
*
13th Army (Soviet Union)
*
13th Air Army
The 76th Air Army was a unit of the Soviet Air Forces from 1949–1980, and again from 1988–98. As the 13th Air Army, it was originally formed on 25 November 1942 and based on air units of the Leningrad Front.
13th Air Army's initial components ...
, Soviet Union
{{mil-unit-dis