2nd Division
- 2nd (African) Division
- 2nd (London) Infantry Division
- 2nd (Rawalpindi) Division
- 2nd Airborne Division (United Kingdom)
- 2nd Alpine Division "Tridentina"
- 2nd Armored Division (France)
- 2nd Armored Division (Syria)
- 2nd Armored Division (United States)
- 2nd Armoured Division (Australia)
- 2nd Armoured Division (United Kingdom)
- 2nd CC.NN. Division "28 Ottobre"
- 2nd Canadian Division
- 2nd Cavalry Division (German Empire)
- 2nd Cavalry Division (Reichswehr)
- 2nd Cavalry Division (United Kingdom)
- 2nd Cavalry Division (United States)
- 2nd Cavalry Division Emanuele Filiberto Testa di Ferro
- 2nd Division (Australia)
- 2nd Division (Colombia)
- 2nd Division (Continuation War)
- 2nd Division (Estonia)
- 2nd Division (German Empire)
- 2nd Division (Imperial Japanese Army)
- 2nd Division (Iraq)
- 2nd Division (Japan)
- 2nd Division (Nigeria)
- 2nd Division (North Korea)
- 2nd Division (Norway)
- 2nd Division (Portugal)
- 2nd Division (Reichswehr)
- 2nd Division (South Vietnam)
- 2nd Division (Spain)
- 2nd Division (Vietnam)
- 2nd Flak Division
- 2nd Guards Cavalry Division (Russian Empire)
- 2nd Guards Division (Imperial Japanese Army)
- 2nd Guards Infantry Division (German Empire)
- 2nd Guards Tank Corps
- 2nd Indian Cavalry Division
- 2nd Infantry Division "Sforzesca"
- 2nd Infantry Division (France)
- 2nd Infantry Division (India)
- 2nd Infantry Division (Philippines)
- 2nd Infantry Division (South Africa)
- 2nd Infantry Division (South Korea)
- 2nd Infantry Division (Thailand)
- 2nd Infantry Division (United Kingdom)
- 2nd Infantry Division (United States)
- 2nd Infantry Division (Venezuela)
- 2nd Infantry Division (Wehrmacht)
- 2nd Legions Infantry Division (Poland)
- 2nd Light Cavalry Division (France)
- 2nd Light Division (Wehrmacht)
- 2nd Light Mechanized Division (France)
- 2nd Lithuanian–Belarusian Division
- 2nd Marine Division (United States)
- 2nd Mechanized Infantry Division (Greece)
- 2nd Moroccan Infantry Division (France)
- 2nd Mountain Division (Wehrmacht)
- 2nd Mounted Division
- 2nd Naval Infantry Division (Wehrmacht)
- 2nd New Zealand Division
- 2nd Panzer Division (Wehrmacht)
- 2nd Parachute Division (Germany)
- 2nd Regiment (disambiguation)
- 2nd Rifle Division (Soviet Union)
- 2nd SS Panzer Division Das Reich
- 2nd Tank Division (Imperial Japanese Army)
- 3rd Mounted Division
- Division II (disambiguation)
- Second (disambiguation)
- Segunda División (disambiguation)