Lerryn (Cornish: Leryon, archaically Lerrin) is a village in Cornwall, United Kingdom. It is situated on the River Lerryn (a tributary of the River Fowey) approximately three miles (5 km) southeast of Lostwithiel.Lerryn straddles two parishes: north of the river it is in St Winnow parish and south of the river in St Veep parish. The river is tidal up to the village and there are stepping-stones across the river which are crossable at low water.