St Austell Bay
![Looking south from Charlestown](/Images/godic/202502/13/Charlestown_Beach_St_Austell_Cornwall_right0607.jpg")
![Map of the four civil parishes in the St Austell area created in 2009click to enlarge](/Images/godic/202502/13/StAustellCornwallNewParishes0607.gif")
St Austell Bay (Cornish:Baya Ti war Dreth) is a bay on Cornwall's south coast which is bounded to the east by Gribbin Head and to the west by Black Head.
Since 1 April 2009 it has also been the name of a civil parish, one of four new parishes created on for the St Austell area. It lies southeast of the town of St Austell and stretches along the coast from Charlestown in the north to Black Head in the south. It includes the communities of Charlestown, Duporth, Porthpean (Higher and Lower Porthpean) and Trenarren and is represented by seven councillors.