Caecal volvulus is a rare cause of mechanical bowel obstruction (1-1.5%) that carries a high mortality rate if diagnosis or surgical intervention is delayed. We report a 35-year-old man who presented with acute colicky abdominal pain, vomiting, and constipation for the past 18 hours. A plain abdominal X-ray showed distended large bowel loops with two large well-defined air-fluid levels superimposed on each other, suggestive of caecal volvulus. The patient underwent emergency laparotomy, and the intraoperative finding confirmed the diagnosis of gangrenous extended caecal volvulus, which involves the terminal ileum, cecum, and the whole of the ascending colon. A right hemicolectomy was performed, and bowel continuity was restored by primary ileotransverse anastomosis. The patient recovered without complications and was discharged on postoperative day 6. In conclusion, caecal volvulus is a rare cause of adult intestinal obstruction. Early diagnosis and surgical intervention can prevent perforation and reduce morbidity related to volvulus perforation.