Molinella (Bolognese: Mulinèla or La Mulinèla) is a comune (municipality) part of Metropolitan City of Bologna in the Italian region Emilia-Romagna, located about 30 kilometres (19 mi) northeast of Bologna.Molinella borders the following municipalities: Argenta, Baricella, Budrio, Medicina.Molinella is situated in a rural area on the old San Donato Road (which in the past connected Bologna with Argenta and its port on the Po di Primaro).