Vyronas is a suburban town and municipality located in the southeastern part of the Athens agglomeration in Greece. It covers a total land area of 9.204 km2.
The town was established as a community in 1933 and officially became a municipality in 1934, having formerly been part of the municipality of Athens. It is named in honor of George Gordon Byron, the 6th Baron Byron, who was a prominent English poet and writer recognized as a national hero of Greece.