The 16th/5th The Queen's Royal Lancers was a cavalry regiment of the British Army. It was formed by the amalgamation of the 16th The Queen's Lancers and the 5th Royal Irish Lancers in 1922 and, after service in the Second World War and the Gulf War, amalgamated with the 17th/21st Lancers to form the Queen's Royal Lancers in 1993.