The 15th Lancers was a cavalry regiment of the British Indian Army which existed from 1858 to 1921. Raised during the 1857 uprising, the regiment later saw service in the Second Afghan War of 1878–80 and the First World War. The regiment was one of the single class regiments, with all troops being recruited from the Punjab.

The 15th Lancers (Baloch) is an armoured regiment of the Pakistan Army. It was formed in 1922 by the amalgamation of the 17th Cavalry and the 37th Lancers (Baluch Horse).