The Prince Edward Island Light Horse was a cavalry regiment of the Non-Permanent Active Militia of the Canadian Militia (now the Canadian Army). First authorized in 1901 as an Independent Squadron of the Canadian Mounted Rifles, it became a full regiment in 1903 and received its regimental number in 1914. The regiment served until 1946 when it was amalgamated with The Prince Edward Island Highlanders to form what is now The Prince Edward Island Regiment (RCAC).