Bariatric/metabolic surgery has emerged as an option for significant and durable weight loss in the treatment of clinically severe obesity; there is increasing demand for bariatric/metabolic surgery worldwide. New procedures have been developed and changed the face of modern bariatric surgery. Gastrointestinal metabolic surgery is a new treatment modality for obesity-related type 2 diabetes mellitus for patients with body mass index greater than 35 kg/m². Providing safe bariatric/metabolic surgery, training qualified bariatric surgeons, and developing better techniques are important issues. This article discusses emerging procedures; a multitude of bariatric metabolic procedures enables surgeons to tailor treatment to patients’ needs.