The Trebbia (stressed Trébbia) is a river of Liguria and Emilia Romagna in northern Italy. It is one of the four main right-bank tributaries of the river Po, the other three being the Tanaro, the Secchia and the Panaro. The 1,150 km² drainage basin is divided between Emilia Romagna (770 km²), Liguria (349 km²) and Lombardy (349 km²).

Its principal tributaries are the torrents Aveto and Perino (from the right) and the torrent Boreca (from the left).

Its source is in the Ligurian Apennines on a hill called Monte Prelà, to the south of Monte Antola in the commune of Torriglio, province of Genova. From there it flows towards north-east for 115 km, until it reaches the Po just to the west of Piacenza.

The main centres through which it flows before Piacenza are Ottone, Marsaglia (in the commune of Corte Brugnatella), Bobbio, Perino (a fraction of Coli), Travo and Rivergaro.

Between its source and Bobbio (pictured) the river flows through a valley of great natural beauty, which attracts tourists for walking as well as for aquatic sports. The river valley then widens before merging with the Pianura Padana beyond Rivergaro.

Along its eastern banks in 218 BC was fought one of the battles of the Second Punic War: the Battle of Trebbia, where Hannibal defeated a Roman consular army.

Rivers of Italy | Po basin

Trebbia | Trebbia | Trebbia | Trebbia | Trebia