90th Division

90th Division may refer to:

;Infantry

• 90th Division (1st Formation) (People's Republic of China), 1949–1950
• 90th Division (2nd Formation) (People's Republic of China), 1950–1952
• 90th Light Infantry Division (Wehrmacht)
• 90th Infantry Division (United States)
• 90th Guards Rifle Division (Soviet Union)

;Armour

• 90th Guards Tank Division (Soviet Union, 1957–1985)
• 90th Guards Lvov Tank Division (1985–1997) (Soviet Union, 1985–1992 and Russia, 1992–1997)
• 90th Guards Tank Division (Russia, 2016–present)

;Aviation

• 90th Air Division (United States)