Penryn is a civil parish and town in Cornwall, England, United Kingdom. It is situated on the Penryn River about 1 mile north-west of Falmouth. The population was 7,166 in the 2001 census and a receded 6,812 in the 2011 census, a drop of more than 300 people across the ten year time gap. There are two electoral wards covering Penryn: 'Penryn East and Mylor' and 'Penryn West'. The total population of both wards in the 2011 census was 9,790

Though now the town is overshadowed by the larger nearby town of Falmouth, Penryn was once an important harbour in its own right, exporting granite and tin to the rest of the country throughout the medieval period.