Agios Nikolaos is a town in Zaharo Municipality, in the regional unit of Elis, in the region of West Greece, Greece. Agios Nikolaos lies at 141 m above sea level, in the Minthi (mountain) mountains, on the Peloponnese peninsula. It has 198 inhabitants (2021). The nearest city is Pyrgos, 27 km to the northwest. Among the landmarks around are Olympia (15.9 km), Temple of Apollo at Bassae (23 km) and Archaeological Museum of Olympia (16.5 km).

Also written Άγιος Νικόλαος.