Kato Synoikia Trikalo is a village in Xylokastro-Evrostina Municipality, in the regional unit of Corinthia, in the region of Peloponnese, Greece. Kato Synoikia Trikalo lies in the Mount Kyllini mountains, on the Peloponnese peninsula. It has 286 inhabitants (2021). The nearest city is Corinth, 40 km to the east. Among the landmarks around are Mycenae (38 km), Nemea (29 km) and Phlius (23 km). Among the natural features are Cave of the Lakes (30 km).

Also written Κάτω Συνοικία Τρικάλων.