Ronsecco is a comune, or municipality, located in the Province of Vercelli within the Piedmont region of northern Italy. It is situated approximately 13 kilometres (8 mi) southwest of the city of Vercelli and about 50 kilometres (31 mi) northeast of Turin.
As of December 31, 2004, the municipality covered an area of 24.5 square kilometres (9.5 mi2) with a recorded population of 606 residents.