Pisa Charterhouse, also known as Calci Charterhouse (Certosa di Pisa, Certosa di Calci), is a former Carthusian monastery, or charterhouse, currently the home of the Museo di storia naturale e del territorio dell'Università di Pisa ("Museum of Natural History and of the Territory of the University of Pisa"), located in the comune of Calci, some 10 km outside Pisa, Tuscany, Italy.