Diano Marina is a comune, or municipality, situated in the Province of Imperia within the Italian region of Liguria. It is located approximately 90 kilometres (56 mi) southwest of Genoa and about 5 kilometres (3.1 mi) northeast of the city of Imperia.
The town serves as a coastal destination in the Riviera di Ponente, characterized by its proximity to major regional hubs and its position along the Ligurian coastline.