The 18th Royal Garhwal Rifles was an infantry regiment of the British Indian Army. It was formed in 1922, after the Indian government decided to reform the army, moving away from single-battalion regiments to multi-battalion regiments. They were the only Indian Infantry regiment to remain intact without being amalgamated. They were renumbered 18th Royal Garhwal Rifles with three active battalions and the 4th battalion becoming the 10th training battalion. After the partition of India in 1947, it was allocated to the new Indian Army and renamed The Garhwal Rifles.