13th Brigade

• 13 Squadron (disambiguation)
• 13th Army (disambiguation)
• 13th Battalion (disambiguation)
• 13th Brigade (Australia)
• 13th Cavalry Brigade (British Indian Army)
• 13th Demi-Brigade of Foreign Legion
• 13th Division (disambiguation)
• 13th Group (disambiguation)
• 13th Indian Cavalry Brigade
• 13th Indian Infantry Brigade
• 13th Infantry Brigade (Hungary)
• 13th Infantry Brigade (United Kingdom)
• 13th Infantry Brigade (United States)
• 13th Light Brigade (Netherlands)
• 13th Light Tank Brigade
• 13th Mounted Brigade
• XIII Brigade, Royal Horse Artillery