A 32-pounder is a gun firing a shot of 32 pounds weight, a mass of 15 kg.

Examples include:

• Naval artillery in the Age of Sail
• 32-pounder gun – a smooth-bore muzzle-loading gun firing bullets of 32 pounds, c. 1500 – c. 1880
• A size of Dahlgren gun of the mid-19th century
• SBBL 32-pounder a breech-loading gun converted from older 42 cwt muzzle-loading 32-pounders, late 19th century
• Ordnance QF 32-pounder of the Second World War