Lieutenant General Sir Ian Cecil 'Tommy' Harris KBE CB DSO (7 July 1910 – 12 March 1999) was an Irish British Army General who reached high office in the 1960s.

[2] Ian Harris was commissioned into the Royal Ulster Rifles in 1930.

[3] He served in World War II initially on the North West Frontier of India but became Commanding Officer of 2nd Bn Royal Ulster Rifles in 1943.

[3] He was appointed Chief of Staff in Northern Ireland in 1952 and then Commander of 1st Federal Infantry Brigade in Malaya in 1954.

[3] He was appointed Deputy Director of Staff Duties (Army) at the War Office in 1957 and General Officer Commanding Singapore Base District in 1960 before becoming Chief of Staff for Contingencies Planning at the Supreme Headquarters Allied Powers Europe in Brussels in 1963.