| Party: | Centre Party |
| Constituency Mp: | South-Eastern Finland |
| Parliament: | Finnish |
| Birth Date: | 15 March 1956 |
| Birth Place: | Lappeenranta, South Karelia, Finland |
Ari Juhani Torniainen (born 15 March 1956 in Lappeenranta) is a Finnish politician currently serving in the Parliament of Finland for the Centre Party at the South-Eastern Finland constituency.[1]