Agios Nikolaos is a village in Monemvasia Municipality, in the regional unit of Laconia Prefecture, in the region of Peloponnese, Greece. Agios Nikolaos lies at 200 m above sea level, in the Parnon mountains, on the Peloponnese peninsula. It has 510 inhabitants (2021). The nearest city is Kalamata, 109 km to the northwest. Beaches nearby: Gialos (3.7 km), Kalevolou (4.5 km), Neratziona (11 km). Among the landmarks around are Boeae (5.6 km), Aphrodisias (13.0 km) and Castle of Vatika (6.6 km). Among the natural features are Kastania Cave (7.8 km).
Also written Άγιος Νικόλαος.