| Honorific-Prefix: | The Honourable |
| Sir Reginald Swartz | |
| Honorific-Suffix: | KBE |
| Office: | Leader of the House |
| Leader: | William McMahon |
| Term Start: | 10 March 1971 |
| Term End: | 15 August 1972 |
| Predecessor: | Billy Snedden |
| Successor: | Don Chipp |
| Constituency Mp5: | Darling Downs |
| Parliament5: | Australian |
| Predecessor5: | Arthur Fadden |
| Successor5: | Tom McVeigh |
| Term Start5: | 10 December 1949 |
| Term End5: | 2 November 1972 |
| Birth Date: | 1911 4, df=yes |
| Birth Place: | Brisbane, Queensland |
| Nationality: | Australian |
| Party: | Liberal Party of Australia |
| Occupation: | Soldier |
Sir Reginald William Colin Swartz KBE (14 April 1911 – 2 February 2006) was an Australian Liberal Party politician who was Minister during the governments of Sir Robert Menzies, Harold Holt and John Gorton. In particular, he is best known as the Minister for Civil Aviation between 1966 and 1969.
He represented the Division of Darling Downs in the House of Representatives between 1949 and 1972 and was a member of the Government for the entire length of his parliamentary service.
Swartz Barracks at the Oakey Army Aviation Centre is named for him.
Swartz was born in Brisbane in 1911 and attended Toowoomba Grammar School. He was born to father John Swartz and worked as a sales clerk before he joined the 2nd AIF during World War II. Swartz was a member of the 2/26th Infantry Battalion of the Australian 8th Division in the Battle of Malaya at the rank of Lieutenant[1] . After capture by the Japanese, he was a prisoner of war in Changi prison and worked on the Burma–Thailand Railway. He was appointed a Member of the Order of the British Empire for his war service.
In 1988, he accompanied John Howard along with two other parliamentarians who were former POWs, John Carrick and Tom Uren, to the opening of the Hellfire Pass Memorial Museum, commemorating the 2700 Australians who died working on the Burma-Thailand Railway.
Swartz was elected as the Liberal member for Darling Downs in 1949. As such, he was a "Forty-niner" which was the name for the Liberal and Country Party members first elected in the landslide victory by the Coalition in that year.
Menzies appointed Swartz as Parliamentary Secretary for Trade in 1956. In that position, he led Trade Missions to India in 1956 and South East Asia in 1958. He was appointed as Minister for Repatriation in 1961 and served in that position before becoming Minister for Health from 1964 to 1966 and briefly Minister for Social Services in early 1965.
Harold Holt appointed Swartz as Minister for Civil Aviation in 1966 and he served in that Ministry for three years. John Gorton appointed him as Minister for National Development in 1969 and he served in that position for three years. He was Leader of the House responsible for managing Government business in the House of Representatives from 1971 to 1972.
Swartz was knighted in 1972 and retired as a parliamentarian later that year.