Grade–Ruan is a civil parish on the Lizard peninsula in Cornwall, England, United Kingdom, approximately ten miles south of Falmouth. It is a rural parish bounded to the east by St Keverne parish and by the sea; to the west by Mullion and Cury parishes; and to the south by Landewednack parish. Grade–Ruan civil parish encompasses part of Goonhilly Downs and the major settlements are Ruan Minor, St Ruan and Cadgwith.