| Nationality: | Finnish |
| Arto Härkönen | |
| Fullname: | Arto Kalevi Härkönen |
| Headercolor: | lightsteelblue |
| Birth Place: | Helsinki, Finland |
| Height: | 1.90 m |
| Weight: | 88 kg |
| Sport: | Athletics |
| Event: | Javelin throw |
| Pb: | 92.40 m (1984) |
| Show-Medals: | yes |
Arto Kalevi Härkönen (born 31 January 1959, in Helsinki) is a retired Finnish javelin thrower who won the gold medal at the 1984 Summer Olympics, with a throw of 86.76 metres.