A chain weapon is a weapon made of one or more heavy objects attached to a chain, sometimes with a handle. The flail was one of the more common types of chain weapons associated with medieval Europe, although some flails used hinges instead of chains.

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Various chain weapons were used in feudal Japan. Recognised fighting arts with such weapons include gekigan-jutsu (using a ball and chain), chigiriki-jutsu (using a ball and chain on a short stick), and kusarigama-jutsu (employing a chain-ball-sickle weapon).^[1] Ninja were expert at handling kusarigama, the composite sickle and chain with a ball being small enough to be easily concealed, and which was used to haul an enemy close enough to be dispatched by a thrust or slash of the razor-sharp kama.^[2] The shoge was a ring with a sickle-like knife on a chain that could be used to pierce armor, grapple, and to entangle the legs of man and horse. The chigiriki was a staff with a weighted chain on the end. The manriki-gusari was a double weighted chain. The nunchaku was a short chain with two short wooden sticks on the ends, although it was principally a farming tool rather than a weapon, at least until much later.

• Asian chain whip.
• Japanese sickle weapon with a chain and iron weight attached "kusari gama"
• Russian flails, 18 cent.
• Russian flail, 16 cent.
• Antique Japanese chain weapon "manriki"
• Japanese tetsu chigiriki, a hollow iron cane that has an iron weight attached to a chain hidden inside.
• Nunchaku (nunchuck)
• Meteor hammer.

• Bolas
• Chainlock
• Chain whip
• Flail (weapon)
• Kusari-fundo
• List of mêlée weapons
• Melee weapon
• Meteor hammer
• Rope dart (loosely speaking)
• Slungshot (not to be confused with slingshot)
• Surujin
• Tabak-Toyok
• Three section staff
• List of premodern combat weapons
• List of martial arts weapons