A rare case of left sided variation in the formation of sural nerve is reported. Here, it arose as a branch from common peroneal nerve and did not receive any contribution from medial sural cutaneous nerve, a branch of tibial nerve. It initially coursed lateral to the small saphenous vein, but in distal third of leg, it passed superficial to the vein to lie on its medial side. Since sural nerve is widely used in biopsy and as autograft in peripheral nerve transplantation, as well as in other procedures, awareness about variation in the formation and course of the nerve has immense value to the clinicians.
