The province of Piacenza (Italian: provincia di Piacenza) is a province in the Emilia-Romagna region of Italy. It has a population of 287,542.
It borders Lombardy (the provinces of Lodi, Cremona, and Pavia) to the north, Lombardy (the province of Pavia) and Piedmont (the province of Alessandria) to the west, the province of Parma to the east, and Liguria (the metropolitan city of Genoa) to the south.