Loutraki is a seaside resort on the Gulf of Corinth, in Corinthia, Greece. It is located 81 kilometres (50 miles) west of Athens and 8 kilometres (5 miles) northeast of Corinth. Loutraki is the seat of the municipality Loutraki-Perachora-Agioi Theodoroi. The town is well known for its vast natural springs and its therapeutic spas.

The town is bordered by the Gulf of Corinth in the west, while the mountain range of Geraneia dominates north and east. There is a small valley in the southwest that leads to the Isthmus of Corinth. Although part of Corinthia Prefecture, Loutraki is situated northwest of the Corinth Canal thus not on the Peloponese.