Oncoplastic surgery (OPS) has emerged as the latest paradigm in the treatment of cancer of the breast. Prior to the development of OPS, the surgeon could provide either a modifi ed radical mastectomy or a segmental excision with subsequent radiation to the breast cancer patient ( 1 ). With integration of plastic surgical techniques into the repertoire of the breast surgeon, a new way to treat women with early-stage cancer of the breast has emerged. Oncoplastic surgery allows the surgeon to perform larger resections of the breast with better cosmetic outcome while adhering to oncologic principles ( 1-5 ). The goal of this chapter is to explain the concepts of OPS as well as to familiarize the reader with the most common oncoplastic techniques in the approach to early-stage breast cancer.