Many flaps have been described based on the septocutaneous perforators; these have many advantages for the coverage of soft tissue defects. The ulnar forearm flap described by Lovie is a septocutaneous flap based on the septocutaneous perforators of the ulnar artery. We report the use of this flap in 2 patients who required soft tissue coverage.The ulnar forearm flap has the advantages of thin and pliable skin, constant and large pedicle, and the teclinical possibility of combination with the muscles, sensory or motor nerve, and ulna. Comparing it with the radial forearm flap, there is no possibility of exposure of flexor tendons, which usually results in the good take of skin grafts. After skin grafting, the donor scar is unnoticeable because of its position on the forearm. This flap is for the coverage of thin defects that require mobility, such as in the extremities or the intraoral region. It also could be used for the coverage of hand or arm defects as a distally or proximally based island flap, respectively.