A case of temporary ectopic implantation of an amputated penis to the forearm followed by subsequent return to its anatomic position is reported. The penis was amputated by a riding lawnmower, and massive contamination of the perineum and an extensive hematoma precluded immediate replantation. The penile vessels were attached to the radial artery and venae comitantes on the forearm, where it survived completely. After 4 weeks, the edema and hematoma of the perineum had resolved, and the penis was returned to its anatomic position by microsurgical technique. Arteries, veins, and nerves were repaired. The penis survived in its entirety. Return of sensation has been excellent. A urethrocutaneous fistula developed that required secondary closure with local flaps. Temporary ectopic replantation of the penis is a useful salvage procedure when the perineum is heavily contaminated or too extensively damaged for immediate replantation.