65th Brigade may refer to:
Iran 65th Airborne Special Forces Brigade
Japan 65th Independent Mixed Brigade (Imperial Japanese Army)
Ukraine 65th Mechanized Brigade (Ukraine)
United Kingdom 65th Anti-Aircraft Brigade 65th Brigade (United Kingdom) 65th (Howitzer) Brigade, Royal Field Artillery, British Army unit during World War I 65th (8th London) Brigade, Royal Field Artillery, British Army unit after World War I 65th (Manchester Regiment) Anti-Aircraft Brigade, Royal Artillery
United States 65th Field Artillery Brigade (United States) 65th Medical Brigade
See also 65th Brigade Engineer Battalion (United States) 65th Division (disambiguation) 65th Regiment (disambiguation)