Bagnolo in Piano is a comune (municipality) in the province of Reggio Emilia in the Italian region Emilia-Romagna, located about 60 kilometres (37 mi) northwest of Bologna and about 8 kilometres (5 mi) northeast of Reggio nell'Emilia.

Bagnolo in Piano borders the following municipalities: Cadelbosco di Sopra, Correggio, Novellara, Reggio Emilia. Sights include the Torrazzo, a medieval tower which is what remains of the castle destroyed by the French during the War of Spanish Succession, and the medieval Pieve, in the frazione of Pieve Rossa.