The patrons of Pianello Val Tidone are Saint Maurice and Saint Columbanus, celebrated on 22 September.
The first Sunday after the feast brings the Fiera di San Maurizio: once devoted to buying and selling livestock, it used to draw visitors from across the Piacenza area and the nearby Oltrepò Pavese; today it features food stalls, dancing and fireworks, paired with the Valtidone Wine Fest.