Third Army

• 3rd Army (Austria-Hungary)
• 3rd Army (France)
• 3rd Army (German Empire)
• 3rd Army (RSFSR)
• 3rd Army (Russian Empire)
• 3rd Army (Soviet Union)
• 3rd Army (Wehrmacht)
• 3rd Army Corps (disambiguation)
• 3rd Battalion (disambiguation)
• 3rd Brigade (disambiguation)
• 3rd Division (disambiguation)
• 3rd Panzer Army
• 3rd Regiment (disambiguation)
• 3rd Squadron (disambiguation)
• Third Army (Bulgaria)
• Third Army (Egypt)
• Third Army (Home Forces)
• Third Army (Hungary)
• Third Army (Italy)
• Third Army (Japan)
• Third Army (Ottoman Empire)
• Third Army (Romania)
• Third Army (Serbia)
• Third Army (Turkey)
• Third Army (United Kingdom)
• Third Army (United States)