First
1st Battalion, 1st Marines
1st Cavalry
1st Reconnaissance Battalion
1st Operations Group
1st Regiment
1st Mounted Division
1st Division
1st Senate district
1st Fighter Brigade
Royal 1st Devon Yeomanry
3rd Battalion, 1st Marines
1st Rifle Division
1st Armoured Infantry Brigade (United Kingdom)
1st Brigade Combat Team, 1st Cavalry Division (United States)
1st Word
1st Hussars
1st Pennsylvania Regiment
1st Theater Sustainment Command
1st Squadron, 1st Cavalry Regiment
1st Reconnaissance Squadron
1st Battalion, 4th Marines
1st Brigade
1st Brigade Combat Team, 1st Infantry Division (United States)
1st Armored Division (United States)
2nd Battalion, 1st Marines
1st & Ten
1st Marine Regiment (United States)
1st Brigade Combat Team
1st Airborne
1st Michigan Infantry Regiment
1st Distribution Support Battalion
1st Artillery Regiment
1st Engineer Regiment (Italy)
1945–46 Danish 1st Division
1951–52 Danish 1st Division
1955–56 Danish 1st Division
1st Bombardment Wing
1946–47 Danish 1st Division
1st Air Defense Artillery Regiment
1949–50 Danish 1st Division
1948–49 Danish 1st Division
1st Marine Division
1947–48 Danish 1st Division
1950–51 Danish 1st Division
1952–53 Danish 1st Division
1954–55 Danish 1st Division
1st Brigade (Australia)
1st Division (Thailand)
1st Constitution Bancorp
1953–54 Danish 1st Division
1st Minnesota Infantry Regiment
1st Armored
1st Missouri Infantry
1st Belorussian Front
1st Airborne Command Control Squadron
1st (African) Division
1st Armoured Brigade (United Kingdom)
1st (UK) Division
1st Delaware Infantry Regiment
1st Battle Squadron
1st Infantry Division (United States)
1st Division (Australia)
1st Combat Engineer Battalion
1st Expeditionary Rescue Group
1st Horse (Skinner's Horse)
1st Canadian Parliament
1st Colorado Infantry Regiment
1st Fighter Squadron
1st Infantry Regiment (United States)
Ōita 1st district
1st Georgia Infantry Regiment
1st Fighter Wing
1st Cavalry Division (United States)
1st ward, Chicago
1st Test and Evaluation Squadron
1st (Peshawar) Division
Francis Cook, 1st Viscount of Monserrate
1st Foreign Regiment (France)
1st millennium BC
1st Royal New South Wales Lancers
1st Light Car Patrol (Australia)
1956–57 Danish 1st Division
1st Marine Expeditionary Brigade (United States)
1st Armored Division (France)
1st Special Operations Squadron
1st Source
1st Anti-Aircraft Brigade
1st Pontieri Regiment
1st Low Altitude Air Defense Battalion
1st Provisional Marine Brigade
1st Brahmans
1st Maryland Cavalry Regiment
1st Marine Logistics Group
1st Cavalry Regiment (United States)
1st Air Cavalry Brigade
1st Battalion, 5th Marines
1st Earl of Suffolk
1st Canadian Division
1st Armoured Division (Australia)
1st Ski Division (Wehrmacht)
1st Civil Affairs Group
1st Parachute Division (Germany)
1st Wisconsin Infantry Regiment
1st Airlanding Brigade (United Kingdom)
1st Guards Brigade (Croatia)
Captain 1st rank
1958 Danish 1st Division
1st Aviation Regiment (United States)
1st Time
1st Health Battalion (Australia)
1st Earl Temple
1st Brigade (New Zealand)
1959 Danish 1st Division
1st Commonwealth Division
1st Photographic Group
1st Strategic Aerospace Division
1960 Danish 1st Division
1st Marine Aircraft Wing
1st Helicopter Squadron
2002–03 Danish 1st Division
2003–04 Danish 1st Division
1st Tactical Missile Squadron
1st Missouri Cavalry Regiment (Union)
2000–01 Danish 1st Division
1997–98 Danish 1st Division
Komandarm 1st rank
1st Maryland Cavalry Battalion, Potomac Home Brigade
1996–97 Danish 1st Division
1st Airlift Squadron
1st Bersaglieri Regiment
1st Viscount Hampden
1999–2000 Danish 1st Division
1st GAM: Amai Yuwaku
1st Armored Brigade (People's Republic of China)
1st Force Reconnaissance Company
2001–02 Danish 1st Division
1st Army Corps
1st Regiment, Royal Australian Artillery
1st Battalion (Ontario Regiment), CEF
1st Infantry Regiment (Lithuania)
1st (Risalpur) Cavalry Brigade
2004–05 Danish 1st Division
1995–96 Danish 1st Division
1st Central Committee of the Workers' Party of North Korea
1st of tha Month
1st West Virginia Infantry Regiment
1st Tank Battalion
1st South African Infantry Division
1st Battalion, 227th Aviation Regiment (United States)
1st Australian Horse
2009–10 Danish 1st Division
1st Army (Italy)
1st Battalion (Australia)
1st Central Committee
1st King's Dragoon Guards
1998–99 Danish 1st Division
1st Amphibious Mechanized Infantry Division
1st district
1st Artillery Regiment "Cacciatori delle Alpi"
1st Air Fleet
Active Privy Councillor, 1st class
Interzone: The 1st Anthology
Government of the 1st Dáil
1st The Royal Dragoons
1st Special Forces Group (United States)
1st Turkmenevo
1st Gloucestershire Engineer Volunteer Corps
1st Rhode Island Infantry Regiment
1st Tank Brigade (Ukraine)
1st Battalion, 11th Marines
1st Corps (Yugoslav Partisans)
1st Congress
1st Mountain Division
1st Special Operations Wing
1st Panzergrenadier Brigade (Germany)
1967 Danish 1st Division
1st Light Cruiser Squadron
William Somerville, 1st Baron Athlumney
1st Guards Tank Army
1st Armoured Division (Poland)
1st String Teenage High
Queen's York Rangers (1st American Regiment)
1st Army Corps (Soviet Union)
167th (1st London) Brigade
2005–06 Danish 1st Division
1st Parliament
James Remnant, 1st Baron Remnant
2023–24 Danish 1st Division
William Herbert, 1st Earl of Pembroke (died 1570)
Members of the 1st Dáil
1st Regiment "Granatieri di Sardegna"
2021–22 Danish 1st Division
Joseph Paton Maclay, 1st Baron Maclay
1st Mechanized Corps (Soviet Union)
Sir John Anderson, 1st Baronet
1st millennium
1st Ranger Battalion
1st Brazilian Fighter Squadron
1st Arkansas Infantry Regiment