Alfta is a locality in Ovanåker Municipality, in Gävleborg County, Sweden. Alfta lies at 94 m above sea level. It has 2,418 inhabitants (2023). The nearest city is Falun, 86 km to the southwest. Among the landmarks around are Alfta Church (0.2 km), Bollnäs Church (16.8 km) and Ovanåkers kyrka (9.5 km).