Background: Laparoscopic Sleeve Gastrectomy (LSG) was developed as a first stage operation of a two-stage biliopancreatic diversion with duodenal switch surgery in patients with very high body mass index (BMI). Nowadays, LSG has become one of the most popular bariatric procedure worldwide providing sustained weight loss with comorbidity remissions and limited morbidity.   Patients and methods: Between June 2016 to September 2018, 24 patients underwent one stage conversion of gastric bands to LSG. All patients had completed 6 months follow-up visits.   Results: Mean operating room time was 57 ± 29 minutes. Median post-operative length of stay was 1.3 ± 0.7 days. No conversions to laparotomy were needed. Complications occurred in two patients. On the 1st postoperative day, one patient had intra-abdominal bleeding which was managed by blood transfusion. The other patient had port site hernia at the 15 mm port site. Urgent laparoscopic reduction of hernia contents and closure of the defect were done. Mean BMI has dropped from 44.9 ± 5.2 to 34.1 ± 8.3 kg/m2 at 6 months postoperatively. Mean % excess weight loss (%EWL) is 49.4 ± 3.5% at 6 months postoperatively.   Conclusion: One Stage Conversion of failed adjustable gastric band to laparoscopic sleeve gastrectomy is safe and effective procedure.