Dionysos (Greek: Διόνυσος) is a northern suburb of the Athens agglomeration and a municipality in northeastern Attica, Greece.

Even though the town is located only 20 Kilometres away from central Athens, it has a completely different climate, with weather being significantly cooler, including frequent snowfall during the winter.

The A1 motorway (Athens–Thessaloniki–Evzonoi) and the railway from Athens to Thessaloniki pass through the western part of the municipality, near Agios Stefanos.

Thrakomakedones experiences hot, relatively dry summers and cool, wet winters.

The public library of Dionysos is located in the town hall, includes over 3500 books available to registered residents to borrow for free.