25th Brigade or 25th Infantry Brigade may refer to:
Australia 25th Brigade (Australia)
Canada 25th Canadian Infantry Brigade
Greece 25th Armoured Brigade (Greece)
Hungary 25th Infantry Brigade "György Klapka"
India 25th Indian Infantry Brigade
Indonesia 25th Raider Infantry Brigade
Iran 25th Takavar Brigade
Kuwait Kuwait 25th Commando Brigade
Kyrgyzstan Scorpion 25th Special Forces Brigade
North Korea 25th Infantry Brigade (North Korea)
Poland 25th Air Cavalry Brigade
Russia 25th Guards Motor Rifle Brigade 25th Rocket Brigade
Soviet Union 25th Rocket Brigade
Ukraine 25th Airborne Brigade 25th Public Security Protection Brigade 25th Transport Aviation Brigade
United Kingdom 25th Armoured Engineer Brigade Royal Engineers 25th Army Tank Brigade 25th (East Africa) Infantry Brigade 25th Infantry Brigade (United Kingdom) 25th (Irish) Reserve Brigade 25th Brigade Royal Field Artillery
United States 25th Combat Aviation Brigade
See also Egyptian 25th Brigade ambush 25th Division (disambiguation) 25th Regiment (disambiguation) 25th Battalion (disambiguation) 25 Squadron (disambiguation)