In military terms, 8th Division, 8th Infantry Division or 8th Armored Division may refer to:

Infantry divisions

• 8th Division (Australia)
• 8th Infantry Division (France)
• 8th Division (German Empire)
• 8th Ersatz Division (German Empire)
• 8th Landwehr Division (German Empire)
• 8th Bavarian Reserve Division (German Empire)
• 8th Infantry Division (Greece)
• 8th Infantry Division (India)
• 8th Division (Iraq)
• 8th Division (Imperial Japanese Army)
• 8th Division (North Korea)
• 8th Infantry Division (Pakistan)
• 8th Infantry (Storm Troopers) Division (Philippines)
• 8th Infantry Division (Poland)
• 8th Infantry Division (South Korea)
• 8th Rifle Division (Soviet Union)
• 8th Infantry Division (United Kingdom)
• 8th Infantry Division (United States)
• 8th J ger Division Nazi Germany
• 8th Mountain Division Nazi Germany

Cavalry divisions

• 8th Cavalry Division (German Empire)
• 8th SS Cavalry Division Florian Geyer (Germany)

Armoured divisions

• 3rd Light Division (Germany) (renamed 8th Panzer Division)
• 8th Armoured Division (United Kingdom)
• 8th Armored Division (United States)

Aviation Divisions

• 8th Air Division (United States)

de:8. Division fr:8e division ko:8 nl:8e Pantserdivisie ja: 8 ru:8- sl:8. divizija