Alessandria is a city and commune in Piedmont, Italy, and the capital of the Province of Alessandria. The city is sited on the alluvial plain between the Tanaro and the Bormida rivers, about 90 kilometres east of Turin.

The province of Alessandria is an Italian province, with a population of some 425,000, which forms the southeastern part of the region of Piedmont. The provincial capital is the city of Alessandria.