| Pat Farrelly | |
| Full Name: | Patrick Oliver Farrelly |
| Nationality: | Canadian |
| Sport: | Athletics |
| Event: | Racewalking |
| Birth Date: | 11 July 1935 |
| Birth Place: | Mullingar, Ireland |
| Death Place: | Hamilton, Ontario, Canada |
Patrick Oliver Farrelly (11 July 1935 – 24 October 2018) was a Canadian racewalker. He competed in the men's 20 kilometres walk at the 1976 Summer Olympics.[1] He died in 2018 after a long illness.[2]