19th Division
- 19th (Western) Division (United Kingdom)
- 19th Air Division (United States)
- 19th Armored Division (United States)
- 19th Battalion (disambiguation)
- 19th Brigade (disambiguation)
- 19th Corps (disambiguation)
- 19th Division (German Empire)
- 19th Division (Imperial Japanese Army)
- 19th Division (North Korea)
- 19th Ersatz Division (German Empire)
- 19th Group (disambiguation)
- 19th Infantry Division (Bangladesh)
- 19th Infantry Division (India)
- 19th Infantry Division (Ottoman Empire)
- 19th Infantry Division (Poland)
- 19th Infantry Division (United States)
- 19th Infantry Division Venezia
- 19th Mechanized Division (Greece)
- 19th Motor Rifle Division (Soviet Union)
- 19th Panzer Division (Germany)
- 19th Regiment (disambiguation)
- 19th Rifle Division (Soviet Union)
- 19th Squadron (disambiguation)
- 19th Waffen Grenadier Division of the SS (2nd Latvian)
- Soviet Army