Vellezzo Bellini is a comune, or municipality, located in the Province of Pavia within the Lombardy region of northern Italy. It is situated approximately 25 km (16 mi) south of Milan and about 10 km (6.2 mi) northwest of the city of Pavia.
As of December 31, 2004, the municipality covered an area of 7.9 km² (3.1 sq mi) and had a recorded population of 2,565 residents.