| Jack Harper | |
| Fullname: | Jack Edwin Harper |
| Birth Date: | 8 April 1914 |
| Birth Place: | Melbourne, Australia |
| Death Place: | Melbourne, Australia |
| Australianopenresult: | QF (1946) |
| Wimbledonresult: | 4R (1948) |
| Australianopendoublesresult: | F (1937)[1] |
| Wimbledondoublesresult: | SF (1948)[2] |
| Mixed: | yes |
| Australianopenmixedresult: | 1R (1935) |
| Wimbledonmixedresult: | 3R (1946, 1947) |
Jack Edwin "Jock" Harper (8 April 1914 – 17 January 2005) was an Australian amateur tennis player who competed mainly in the 1930s and 1940s. He reached the quarterfinals of the Australian Championships in 1946 and was runner-up in the men's doubles in 1937 partnering John Bromwich.
In April 1946 Harper lost just a single point when he defeated J. Sandiford 6–0, 6–0 at the Surrey Open Hard Court Championships in a match that lasted 18 minutes, the shortest singles match on record.[3] [4]