The King's Regiment, officially abbreviated as KINGS, was an infantry regiment of the British Army, part of the King's Division. It was formed on 1 September 1958 by the amalgamation of The King's Regiment (Liverpool) which had been raised in 1685 and The Manchester Regiment which traced its history to 1758. When formed in 1958, The King's Regiment consisted of one infantry battalion, known within the Army as 1 KINGS. Converted first to a mechanized battalion, it converted back to a light battalion in UK and subsequently in Hong Kong and Northern Ireland, back to a mechanized battalion in 1980 and then again to a light battalion. Finally when amalgamated in 2006 the regiment was roled as armoured infantry.

In December 2004, it was announced that The King's Regiment, King's Own Royal Border Regiment and The Queen's Lancashire Regiment, would be amalgamated to form The Duke of Lancaster's Regiment (King's, Lancashire and Border) as part of the restructuring of the infantry. On formation of the new regiment on 1 July 2006, 1 KINGS became the 2nd Battalion The Duke of Lancaster's Regiment.