Lardirago is a comune, or municipality, situated in the Province of Pavia within the Lombardy region of northern Italy. It is geographically positioned approximately 25 kilometers south of Milan and roughly 9 kilometers northeast of the city of Pavia.
The town serves as a local administrative division characterized by its proximity to these two major regional centers. As a municipality in the Province of Pavia, it is part of the rural landscape of the Lombardy region.