1st Division

1st Division or First Division may refer to:

Airborne divisions

 * 1st Parachute Division (Germany)
 * 1st Airborne Division (United Kingdom)
 * 1st Airmobile Division (Ukraine)
 * 1st Guards Airborne Division

Armoured divisions

 * 1st Armoured Division (Australia)
 * 1st Canadian Armoured Division (subsequently renamed the 5th Canadian Division)
 * 1st Armored Division (People's Republic of China)
 * 1st Armored Division (France)
 * 1st Light Mechanized Division (France)
 * 1st Panzer Division (Bundeswehr), (West) Germany
 * 1st Panzer Division (Wehrmacht), Nazi Germany
 * Fallschirm-Panzer Division 1 Hermann Göring, Nazi Germany
 * 1st Armoured Division (India)
 * 1st Tank Division (Imperial Japanese Army)
 * 1st Armoured Division (Poland)
 * 1st Mechanised Division (Poland)
 * 1st Mechanized Division (Soviet Union)
 * 1st Armoured Division (United Kingdom)
 * 1st Armored Division (United States)
 * 1st Armoured Division (Syria)
 * 1st Guards Mechanized Corps (Soviet Union)
 * 1st Tank Division (Soviet Union)
 * 1st Armored Brigade (People's Republic of China), formerly the 1st Tank Division, then 1st Armored Division

Artillery divisions

 * 1st Anti-Aircraft Division (Japan)
 * 1st Anti-Aircraft Artillery Division (Soviet Union)
 * 1st Anti-Aircraft Division (United Kingdom)
 * 1st Flak Division

Aviation divisions

 * 1st Fighter Division (China)

Cavalry divisions

 * 1st Light Cavalry Division (France)
 * 1st Foot Cavalry Division (France)
 * 1st Cavalry Division (German Empire)
 * 1st Cavalry Division (Reichswehr), Weimar Republic, Germany
 * 1st Cavalry Division (Wehrmacht), Nazi Germany
 * 1st Light Division (Germany)
 * 1st Indian Cavalry Division, British Indian Army during World War I
 * 1st Cavalry Division "Eugenio di Savoia", Royal Italian Army
 * 1st Cavalry Division (Poland)
 * 1st Guard Cavalry Division (Russian Empire)
 * 1st Cavalry Division (Soviet Union)
 * 1st Cavalry Division (United Kingdom)
 * 1st Mounted Division (United Kingdom)
 * 1st Cavalry Division (United States)

Infantry divisions

 * 1st Guards Infantry Division (Russian Empire)
 * 1st Guards Infantry Division (German Empire)
 * 1st Division (Australia)
 * 1st Infantry Division (Belgium)
 * 1st Canadian Division
 * 1st Commonwealth Division
 * 1st Division (Colombia)
 * 1st Division (Estonia)
 * 1st Colonial Infantry Division (France)
 * 1st Free French Division
 * 1st Division (German Empire)
 * 1st Infantry Division (Wehrmacht), Nazi Germany
 * 1st Mountain Division (Wehrmacht), Nazi Germany
 * 1st Mountain Division (Bundeswehr), West Germany
 * 1st Naval Infantry Division (Wehrmacht), Nazi Germany
 * 1st Ski Division (Wehrmacht) Nazi Germany
 * 1st SS Panzer Division Leibstandarte SS Adolf Hitler, Nazi Germany
 * 1st Infantry Division (Azerbaijan, 1918)
 * 1st Infantry Division (Greece)
 * 1st Kostrad Infantry Division, Indonesia
 * 1st Alpine Division "Taurinense", Royal Italian Army
 * 1st CC.NN. Division "23 Marzo", Italy
 * 1st Infantry Division "Superga", Royal Italian Army
 * 1st Division (Imperial Japanese Army)
 * 1st Guards Division (Imperial Japanese Army)
 * 1st Division (Ireland)
 * 1st Division (Japan)
 * 1st Division (New Zealand)
 * 1st Division (North Korea)
 * 1st Infantry Division (Philippines)
 * Polish 1st Tadeusz Kościuszko Infantry Division
 * 1st Legions Infantry Division (Poland)
 * 1st Grenadiers Division (Poland)
 * 1st Infantry Division (Romania)
 * 1st Infantry Division (South Africa)
 * 1st Infantry Division (South Korea)
 * 1st Rifle Division (Soviet Union)
 * 1st Caucasian Rifle Division (Soviet Union)
 * 1st Division (South Vietnam)
 * 1st Division (Spain)
 * 1st Asturian Division (Spain)
 * 1st Division (Thailand), King's Guard
 * 1st Ukrainian Division of the Ukrainian National Army
 * 1st Zadneprovsk Ukrainian Soviet Division
 * 1st (African) Division, United Kingdom
 * 1st (Peshawar) Division, British Indian Army before and during World War I
 * 1st (United Kingdom) Division
 * 1st London Division, United Kingdom
 * 1st Infantry Division (United States)
 * 1st Marine Division
 * 1st Division (Vietnam)

Naval divisions

 * 1st Division (Royal Navy), Home Fleet, United Kingdom

Association football

 * Azadegan League, the second-tier professional football league in Iran
 * Azerbaijan First League, the second-tier professinal football league in Azerbaijan
 * Cypriot First Division, the top-flight football division in Cyprus
 * Danish 1st Division, the second-tier football league in Denmark
 * Football League First Division, the defunct top-flight of the English football league system
 * Hong Kong First Division League, the second-highest division in the Hong Kong football league system
 * Kategoria e Parë, the second-tier football league in Albania
 * League of Ireland First Division, second-level division in Ireland's football league system
 * Norwegian First Division, second-level division in Norway's football league system
 * Oman First Division League, second-highest Association football league in Oman
 * Saudi First Division League, tier of professional football in Saudi Arabia
 * Scottish Football League First Division, the second-tier football league in Scotland from 1975 to 2013
 * Uzbekistan Pro League, the second-tier football league in Uzbekistan

Baseball

 * First division (baseball), a general term referring to teams in the top half of league standings