| Tressa | |
| Mouth: | Arbia |
| Mouth Coordinates: | 43.2548°N 11.3977°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Italy |
The Tressa is a torrent in Tuscany, central Italy, a tributary of the river Arbia. It's 17 kilometer long and its source is located near Marciano, in the comune of Siena. It flows across the territory of Monteroni d'Arbia and then into the river Arbia near Ponte a Tressa.