| Party: | Left Alliance |
| Constituency Mp: | Satakunta |
| Term Start: | 20 April 2011 |
| Term End: | 4 April 2023 |
| Parliament: | Finnish |
| Birth Place: | Vaasa, Ostrobothnia, Finland |
Jari Heikki Myllykoski (born 27 June 1959 in Vaasa) is a Finnish politician who served in the Parliament of Finland for the Left Alliance at the Satakunta constituency from 2011 to 2023.[1]