| Tanaro | |
|---|---|
 Near Alessandria | |
 | |
| Native name | Tane (Piedmontese) |
| Location | |
| Country | Italy |
| Physical characteristics | |
| Source | |
| • location | Ligurian Alps, on the slopes of Monte Saccarello |
| Mouth | |
• location | Po near Bassignana (AL) |
• coordinates | 45°00′20″N 8°46′10″E / 45.00556°N 8.76944°E |
| Length | 276 km (171 mi) |
| Basin size | 8,234 km2 (3,179 sq mi) |
| Discharge | |
| • average | 123 m3/s (4,300 cu ft/s) |
| Basin features | |
| Progression | Po→ Adriatic Sea |
| Tributaries | |
| • left | Ellero, Stura di Demonte, Borbore, Versa |
| • right | Belbo, Bormida |
The Tanaro (Italian pronunciation: [ˈtaːnaro]; Piedmontese: Tane [ˈtɑne]; Ligurian: Tànau [ˈtana(ɹ)u]; Latin: Tanarus), is a 276-kilometre (171 mi) long river in northwestern Italy. The river begins in the Ligurian Alps, near the border with France, and is the most significant right-side tributary to the Po in terms of length, size of drainage basin (partly Alpine, partly Apennine), and discharge.