The Western King's Redoubt is an 18th and 19th-century artillery battery in Plymouth, Devonshire, England, upgraded as a result of the Royal Commission on the Defence of the United Kingdom of 1859.

Part of an extensive scheme known as Palmerston Forts, after the prime minister who championed the scheme, it was built to defend the seaward approaches to the Hamoaze, as an element of the plan for the defence of the Royal Naval Dockyard at Devonport.

[4] In 1941 two positions were created for twin 6 pounder Quick Firing guns to provide rapid firing capability against enemy Motor Torpedo Boats (MTBs).

These positions remained armed until the dissolution of coast artillery in 1956 when they were removed.

The 12 Pounder Quick Firing gun positions survive intact and the positions for the twin 6 Pounder guns have been partly filled in but retain their overhead cover, designed as protection against air attack.