Rogerius (before 1140 – c. 1195), also called Rogerius Salernitanus, Roger Frugard, Roger Frugardi, Roggerio Frugardo, Rüdiger Frutgard and Roggerio dei Frugardi, was a Salernitan surgeon who wrote a work on medicine entitled Practica Chirurgiae ("The Practice of Surgery") around 1180 (sometimes dated earlier to 1170; sometimes later, to 1230). It is also called Chirurgiae Magistri Rogerii ("The Surgery of Master Rogerius").