Ottone (Ligurian: Utùn; Piacentino: Uton) is a comune (municipality) in the Province of Piacenza in the Italian region Emilia-Romagna, located about 160 kilometres (99 mi) west of Bologna and about 60 kilometres (37 mi) southwest of Piacenza, in the upper Val Trebbia on the Ligurian Apennine.

Ottone is the westernmost comune of Emilia-Romagna.

The Mount Alfeo is located in its territory.

Pietro Toscanini, great-grandfather of Arturo Toscanini, was born in the Bogli borgo of Ottone, on 19 May 1769.

This article on a location in Emilia–Romagna is a stub.