Vyronas (Greek: Βύρωνας) is a suburban town and a municipality in the southeastern part of the Athens agglomeration, Greece.

Towards the southeast the municipality extends to the forested Hymettus mountain.

The built-up area of Vyronas is continuous with that of municipality of Athens and the neighbouring suburbs Kaisariani, Ymittos and Ilioupoli.

The A62 Hymettus Ring Road (formerly the A64 until 2024) runs through the southeastern part of the municipality.

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