2nd Cavalry

• 2nd (Sialkot) Cavalry Brigade
• 2nd Arkansas Cavalry Regiment (Slemons')
• 2nd Arkansas Cavalry Regiment (Union)
• 2nd Brigade Combat Team, 1st Cavalry Division (United States)
• 2nd California Cavalry Regiment
• 2nd Cavalry Army
• 2nd Cavalry Brigade (Australia)
• 2nd Cavalry Brigade (Hungary)
• 2nd Cavalry Brigade (Poland)
• 2nd Cavalry Brigade (United Kingdom)
• 2nd Cavalry Division (Australia)
• 2nd Cavalry Division (German Empire)
• 2nd Cavalry Division (Reichswehr)
• 2nd Cavalry Division (United Kingdom)
• 2nd Cavalry Division (United States)
• 2nd Cavalry Division Emanuele Filiberto Testa di Ferro
• 2nd Cavalry Regiment (Australia)
• 2nd Cavalry Regiment (Greece)
• 2nd Cavalry Regiment (Portugal)
• 2nd Cavalry Regiment (United States)
• 2nd Colorado Cavalry Regiment
• 2nd Florida Cavalry Regiment (Union)
• 2nd Foreign Cavalry Regiment
• 2nd Guard Cavalry division (Russian Empire)
• 2nd Indian Cavalry Division
• 2nd Light Cavalry Division (France)
• 2nd Madras Cavalry
• 2nd Maryland Cavalry (Confederate)
• 2nd Michigan Volunteer Cavalry Regiment
• 2nd Minnesota Volunteer Cavalry Regiment
• 2nd Nebraska Cavalry
• 2nd Ohio Cavalry
• 2nd Regiment Alabama Volunteer Cavalry (Confederate)
• 2nd Regiment Illinois Volunteer Cavalry
• 2nd Regiment Indiana Cavalry
• 2nd Regiment Iowa Volunteer Cavalry
• 2nd Regiment Kansas Volunteer Cavalry
• 2nd Regiment Wisconsin Volunteer Cavalry
• 2nd Regiment of Cavalry (Canada)
• 2nd Regiment of Cavalry, Massachusetts Volunteers
• 2nd Tennessee Cavalry Regiment
• 2nd Virginia Cavalry
• 2nd West Virginia Volunteer Cavalry Regiment
• II Cavalry Corps (German Empire)
• II Cavalry Corps (Grande Armée)