Russian army formations in World War I include:

• 1st Army
• 2nd Army
• 3rd Army
• 4th Army
• 5th Army
• 6th Army
• 7th Army
• 8th Army
• 9th Army
• 10th Army
• 11th Army
• 12th Army
• 13th Army
• Caucasus Army
• Dobruja Army
• Danube Army
• Special Army