Örsta is a village in Nyköping Municipality, in Södermanland County, Sweden. Örsta lies at 34 m above sea level. The nearest city is Nyköping, 18.2 km to the south. Among the landmarks around are Nyköping Castle (18.7 km), Gripsholm Castle (40 km) and Lid Church (0.7 km). Among the natural features are Spikstenen (7.8 km).