| John McKinna | |
| Birth Date: | 11 December 1906 |
| Birth Place: | Goodwood, South Australia |
| Death Place: | Adelaide, South Australia |
| Allegiance: | Australia |
| Branch: | Australian Army |
| Serviceyears: | 1937–1961 |
| Rank: | Brigadier |
| Commands: | 9th Brigade (1952–55) 10th Battalion (1948–52) 25th Battalion (1944–45) |
| Battles: | Second World War |
| Awards: | Companion of the Order of St Michael and St George Commander of the Order of the British Empire Distinguished Service Order Lieutenant of the Royal Victorian Order Efficiency Decoration |
| Laterwork: | Commissioner of the South Australia Police (1957–72) |
Brigadier John Gilbert McKinna (11 December 1906 – 28 January 2000) was a senior officer in the Australian Army during the Second World War. He was also the Police Commissioner for South Australia between July 1957 and June 1972.