This is a list of World War I infantry weapons.

Austro-Hungarian Empire

Edged weapons Flare guns Sidearms Submachine guns Rifles Machine guns Grenades Flamethrowers Mortars Support guns

Kingdom of Belgium

Sidearms Shotguns Rifles Machine guns Grenades Mortars

British Empire

Edged weapons Flare guns Sidearms Rifles Machine guns Grenades Obstacle clearing explosive charges Flamethrowers Mortars Projectile weapons Anti-aircraft weapons

Kingdom of Bulgaria

Sidearms Rifles Machine guns Flamethrowers Infantry mortar

Republic of China

Edged weapons Sidearms Rifle Machine Gun Grenade

French Republic

Edged weapons Sidearms Rifles Machine guns Grenades Obstacle clearing explosive charges Flamethrowers Mortars Projectile weapons Support guns

Kingdom of Hejaz (and other tribes)

Edged weapons Rifles Machine guns

German Empire

Edged weapons Gases Flare guns Sidearms Submachine guns Rifles Machine guns Grenades Anti-tank mines Flamethrowers Mortars Support guns Anti-tank weapons Anti-aircraft weapons

Kingdom of Greece

Edged weapons Sidearms Rifles Machine guns Grenades Mortars

Kingdom of Italy

Edged weapons Sidearms Submachine guns Rifles Machine guns Grenades Flamethrowers Mortars

Kingdom of Siam (now Thailand)

Sidearms Rifles Machine gun Field guns Naval artillery

Empire of Japan

Edged weapons Sidearms Rifles Machine guns

Kingdom of Montenegro

Sidearms Rifles Machine guns

Ottoman Empire

Edged weapons Sidearms Submachine guns Rifles Machine guns Grenades Flamethrowers Infantry mortar

Portuguese Republic

Sidearms Rifles Machine guns Mortars

Kingdom of Romania

Edged weapons Sidearms Rifles Machine guns Grenades Mortars Support guns

Russian Empire

Edged weapons Sidearms Rifles Machine guns Grenades Flamethrowers Mortars Support guns

Sublime State of Persia

Sidearms Rifles Machine guns

Kingdom of Serbia

Sidearms Rifles Machine guns Grenades Flamethrowers Mortars

United States of America

Edged weapons Sidearms Shotguns Rifles Machine guns Grenades Mortars Support guns

Weapons used in trench raids

Concepts and prototypes

Sidearms Submachine guns Rifles Machine guns Grenade launchers Guided explosive weapons