| Jack Harris | |
| Nationality: | Canadian |
| Sport: | Middle-distance running |
| Event: | 800 metres |
| Birth Date: | May 1902 |
| Birth Place: | Aspley Guise, Bedford, England |
| Death Place: | Winnipeg, Manitoba, Canada |
Francis John Harris (May 1902 – 23 August 1997) was a Canadian middle-distance runner. He competed in the men's 800 metres at the 1924 Summer Olympics.[1]