The 15th Light Horse Regiment was a mounted infantry regiment of the Australian Army during the First World War. The regiment was raised in Palestine in 1918, from soldiers that had been serving with the Imperial Camel Corps Brigade, and assigned to the 5th Light Horse Brigade. During the war the regiment fought against the forces of the Ottoman Empire, in the Sinai and Palestine Campaign and was awarded fourteen battle honours. During the inter-war years, the regiment was re-raised as a part-time unit based in the Northern Rivers region of New South Wales. It was later converted to a motor regiment during the Second World War but was disbanded in 1944 without having been deployed overseas. In the post war period, the regiment was briefly re-formed, before being amalgamated into the 1st/15th Royal New South Wales Lancers in 1956.

The Imperial Camel Corps Brigade (ICCB) was a camel-mounted infantry brigade that the British Empire raised in December 1916 during the First World War for service in the Middle East.