The King's Own Royal Border Regiment was an infantry regiment of the British Army in existence from 1959 until 2006, and was part of the King's Division. It was formed at Barnard Castle on 1st October 1959 through the amalgamation of the King's Own Royal Regiment (Lancaster) and the Border Regiment. The official abbreviated form of the regimental title was 'KING'S OWN BORDER'.
In 2006 the King's Own Royal Border Regiment amalgamated with the King's Regiment and the Queen's Lancashire Regiment to form the new Duke of Lancaster's Regiment (King's Lancashire and Border). The Regiment's final act was to serve in Iraq between 2005 and 2006. The new regiment was formed on 1 July 2006, with the Kings Own Royal Border Regiment forming the 3rd Battalion
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