Nerve impairment in the hand probably constitutes its major disability. The functional outcome after nerve repair is determined by numerous factors. As rule in all cases of never injury, the nerve must be repaired as soon as it is diagnosed and should not be unduly delayed, but done alone may result in frustrating outcome.Tendon transfers follow a basic concept that nothing new is created but functional parts are rearranged into the best possible working combination i.e. involve redistribution, not creation, of new power units. These involve detachment of the tendon distally, careful mobilization and rerouting it to a new distal attachment.The aim of this thesis is to give a general idea about the most common methods for tendon transfers done for the various peripheral nerve injuries of the upper limb and its effect on the patient.This study included 10 patients with different nerve injuries of the upper limb. The median nerve was injured in 2 patients, the ulnar nerve in 3 patients, and the radial nerve in 4 patients. One patient had a combined low median and ulnar nerve injury. Tendon transfer was done, after more than six months of the nerve injury and epineural repair in 8 patients. In the two remaining patients, who had posterior interosseous nerve injury in the proximal third of the dorsum of the forearm, tendon transfer was done after 4 months of the injury.In general, early tendon transfer acts as a temporary substitute for the paralyzed muscle until reinnervation occurs; so it acts as an internal splint. If reinnervation is suboptimal, early tendon transfer acts as a helper to augment the power of the muscle. If reinnervation fails to occur, the tendon transfer acts then as a permanent substitute.