Korsnäs may refer to:
Korsnäs AB, a company based in Sweden Korsnäs, Finland, a municipality and town in Ostrobothnia Korsnäs, Falun, a part of the town of Falun Korsnäs, Uppsala kommun, a small village in the Uppsala Municipality a residential area in the village of Östersundom in the municipality of Sipoo in Nyland a village in the municipality of Nagu in Åboland a village in the municipality of Sauvo in Finland Proper a village in the municipality of Vehmaa in Finland Proper