Dentofacial deformities are commonly associated with the chin area when it is inappropriate in size, shape, and position. When three-dimensional facial analysis is made, the chin becomes an important part within the same since it can significantly alter the symmetry, balance, and facial shape. We present a report of A 26 year old female reported with complaints of facial asymmery. On examination she had facial asymmetry with deviation of chin to her left side. Her radiograph (OPG) revealed hypoplasia on the left side of mandible and (lateral cephalogram) with severe chin retrusion. Further evaluation with CT confirmed her diagnosis of Hemifacial microsomia. She was planned for osseous sliding genioplasty procedure under general anesthesia It provide obvious and satisfactory outcome in severe chin deformity which seem very concerning and may seem to include other complex osteotomies. Hence with proper planning and asessment, prioratising patients chiefcomplaint genioplasty can give very satisfactory outcome.