Rob Graham Thirlby (born 2 March 1979), in Penzance, Cornwall is a Cornish rugby union footballer who plays on the wing or full back for Yatton whilst also acting as the video analyst for Gloucester Rugby.
He previously played for Moseley, Penzance-Newlyn, and for Redruth whom he joined from Gloucester Rugby.
He played regularly for the England Sevens team.