Portmeirion Town Hall, also known as the Hercules Hall, is a building in Portmeirion, Gwynedd, Wales. Being in a private village without a government, the building is used as an events venue. It is a Grade I listed building.

Portmeirion is a folly tourist village in Gwynedd, North Wales. It lies on the estuary of the River Dwyryd in the community of Penrhyndeudraeth, 2 miles (3.2 km) from Porthmadog and 1 mile (1.6 km) from Minffordd railway station. Portmeirion was designed and built by Sir Clough Williams-Ellis between 1925 and 1975 in the Baroque style and is now owned by a charitable trust. It has served as the location for numerous films and television shows, most famously as "The Village" in the 1960s television show The Prisoner.