15th Brigade

15th Brigade or 15th Infantry Brigade may refer to:

Australia

 * 15th Brigade (Australia)

Brazil

 * 15th Brigade (Brazil)

Greece

 * 15th Infantry Brigade (Greece)

Hungary

 * 15th Infantry Brigade (Hungary)

India

 * 15th (Imperial Service) Cavalry Brigade

Japan

 * 15th Brigade (Japan)

Romania

 * 15th Mechanized Brigade (Romania)

Russia

 * 15th Separate Guards Motor Rifle Brigade

Spain

 * XV International Brigade

United Kingdom

 * 15th Infantry Brigade (United Kingdom)
 * 15th Mounted Brigade (United Kingdom)
 * Artillery Brigades
 * 15th Brigade Royal Field Artillery
 * XV Brigade, Royal Horse Artillery

United States

 * 15th Sustainment Brigade (United States)