1st Brigade
1st Brigade may refer to:
Argentina
Australia
Bosnia
Brazil
British Burma
British India
British Malaya
Canada
China
Confederate States of America
Croatia
Czechoslovakia
Estonia
France
Georgia
Germany
Greece
Hungary
India
Indonesia
Iran
Iraq
Ireland
Israel
Italy
Japan
Lithuania
Moldova
New Zealand
North Macedonia
Philippines
Poland
Republika Srpska
Romania
Russia
Serbia
Slovakia
Slovenia
South Africa
South Korea
Soviet Union
Spain
Syria
Sweden
Turkey
Ukraine
United Kingdom
- 1st Airlanding Brigade (United Kingdom)
- 1st Anti-Aircraft Brigade (United Kingdom)
- 1st Army Tank Brigade (United Kingdom)
- 1st Armoured Brigade (United Kingdom)
- 1st Armoured Infantry Brigade (United Kingdom)
- 1st Armoured Reconnaissance Brigade (United Kingdom)
- 1st Artillery Brigade (United Kingdom)
- 1st Assault Brigade Royal Engineers
- 1st Aviation Brigade (United Kingdom)
- 1st Brigade Royal Flying Corps
- 1st Cavalry Brigade (United Kingdom)
- 1st Composite Mounted Brigade
- 1st Dismounted Brigade
- 1st Gibraltar Brigade
- 1st Guards Brigade (United Kingdom)
- 1st Intelligence and Surveillance Brigade
- 1st Military Intelligence Brigade (United Kingdom)
- 1st Military Police Brigade
- 1st Parachute Brigade (United Kingdom)
- 1st Provisional Brigade (United Kingdom)
- 1st Reconnaissance Brigade (United Kingdom)
- 1st Reserve Brigade
- 1st Royal Naval Brigade
- 1st SAS Brigade, a fictional unit
- 1st Signal Brigade (United Kingdom)
- 1st South Western Mounted Brigade
- 1st Special Service Brigade
- 1st Strike Brigade
- 1st Queen's Edinburgh Rifle Volunteer Brigade
- 1st Tower Hamlets Rifle Volunteer Brigade
- 1st (West Africa) Infantry Brigade
Artillery units
- 1st Brigade, Royal Field Artillery
- 1st Administrative Brigade, Anglesey Artillery Volunteers
- 1st Administrative Brigade, Cumberland Artillery Volunteers
- 1st Administrative Brigade, Northumberland Artillery Volunteers
- 1st Administrative Brigade, Yorkshire (West Riding) Artillery Volunteers
- 1st East Lancashire Brigade, Royal Field Artillery
- 1st (Somerset) Army Brigade, Royal Field Artillery
- 1st South Midland Brigade, Royal Field Artillery
- 1st (Highland) Medium Brigade, Royal Garrison Artillery
- I Brigade, Royal Horse Artillery
- I Brigade, Royal Horse Artillery (T.F.)
United States
- 1st Air Cavalry Brigade
- 1st Armored Division Sustainment Brigade
- 1st Aviation Brigade
- 1st Brigade, 7th Infantry Division (United States)
- 1st Brigade, 24th Infantry Division (United States)
- 1st Brigade, 104th Division (United States)
- 1st Brigade Georgia Militia
- 1st Cavalry Division Sustainment Brigade
- 1st Engineer Brigade (United States)
- 1st Infantry Training Brigade
- 1st Maneuver Enhancement Brigade
- 1st Marine Expeditionary Brigade (United States)
- 1st Medical Brigade
- 1st Provisional Air Brigade
- 1st Provisional Marine Brigade
- 1st Reserve Officers' Training Corps Brigade
- 1st Security Force Assistance Brigade
- 1st Separate Brigade (Philippine Expedition)
- 1st Signal Brigade (United States)
- 1st Space Brigade
- 1st Sustainment Brigade (United States)
- 1st Tank Destroyer Brigade
- 1st Vermont Brigade
Brigade Combat Teams
- 1st Armored Brigade Combat Team, 34th Infantry Division
- 1st Brigade Combat Team, 1st Armored Division
- 1st Brigade Combat Team, 1st Infantry Division (United States)
- 1st Brigade Combat Team, 1st Cavalry Division (United States)
- 1st Brigade Combat Team, 10th Mountain Division (United States)
- 1st Brigade Combat Team, 82nd Airborne Division
- 1st Infantry Brigade Combat Team, 11th Airborne Division