| Ronald Arthur Tinker | |
| Birth Date: | 13 April 1913 |
| Birth Place: | Christchurch, New Zealand |
| Death Place: | Christchurch, New Zealand |
| Allegiance: |  New Zealand |
| Branch: | New Zealand Military Forces |
| Serviceyears: | 1939–1945 1947–1962 |
| Rank: | Lieutenant Colonel |
| Unit: | Long Range Desert Group (1940–45) |
| Commands: | 1st Battalion, Fiji Infantry Regiment |
| Battles: | Second World War |
| Awards: | Officer of the Order of the British Empire Military Cross Military Medal Mentioned in Despatches |
Ronald Arthur Tinker (13 April 1913 – 16 February 1982) was a notable New Zealand musterer, military leader, scientific administrator and sales agent. He was born in Christchurch, North Canterbury in 1913.