Recently, increasing interest has emerged in contouring of the lower leg. Harmonious legs are considered one of the most important elements of women’s beauty. Calf augmentation is routinely performed using silicone implants or autologous fat grafting. However, such surgical options may be unsuitable for some patients with specific medical conditions or preferences. Herein, we report a rare case of a 36-year-old woman who selected the use of a free deep inferior epigastric perforator (DIEP) flap to correct a left calf contour deformity caused by a previous gunshot injury. The free DIEP flap procedure was carried out successfully without any postoperative complications. Moreover, the patient obtained good aesthetic improvements and was satisfied with the outcome. We therefore recommend the free DIEP flap as an option for the correction of large and irregularly shaped atrophic scars in the lower leg, whether caused by injury, illness, or congenital conditions.