Eržvilkas (Samogitian: Eržvėlks) is a town in Taurage County, Lithuania.

The name of the town comes from the name of the local stream with the same name, a tributary of the Šaltuona [lt] river.

[2] Before World War II and the Holocaust, the village had an important Jewish community.

At the beginning of the Second World War there were 180 Jews living in the village.

[5] In September 1941, they were murdered in mass executions perpetrated by an Einsatzgruppen of Lithuanian policemen at the Gryblaukis forest.