INTRODUCTION: Volvulus of the gallbladder is one of very rare diseases ranked among acute abdomen conditions. Only case reports are described in the literature. The disease presents with acute biliary ailments, often reminiscent of acute cholecystitis. It is more common in frail elderly women and its preoperative diagnosis is very difficult, and therefore this finding is encountered intraoperatively in most cases. CASE REPORT: In our case report we present the case of a female patient where the volvulus of the gallbladder was found as a surprising discovery during surgery. CONCLUSION: Gallbladder volvulus is a rare disease that presents as acute abdomen. It is most often diagnosed intraoperatively. Cholecystectomy is the most appropriate therapeutic method.Key words: gallbladder volvulus - acute abdomen - floating gallbladder.