18th Brigade

18th Brigade may refer to:

• 18th Brigade (Australia)

• 18th Infantry Brigade (United Kingdom)
• 18th Mounted Brigade (United Kingdom)
• Artillery Brigades
  • 18th Brigade Royal Field Artillery
  • XVIII Brigade, Royal Horse Artillery (T.F.)

• 18th Aviation Brigade (United States)
• 18th Engineer Brigade (United States)
• 18th Fires Brigade (United States)
• 18th Military Police Brigade (United States)

• 18th (Croatian) Eastern Bosnian Brigade, an irregular formation of Yugoslav partisans which opposed German forces during World War II

• 18th Army
• XVIII Corps
• 18th Division
• 18th Regiment
• 18th Battalion
• 18 Squadron