Biliary cystadenomas are cystic hepatic tumors of biliary origin. Cystadenomas are often slow growing benign tumors but always harbor the risk of malignant transformation. Cystadenomas are often asymptomatic but may present with abdominal pain and distension. Though suspected with cross sectional abdominal imaging definitive diagnosis almost always requires histology. Spontaneous rupture of cystadenoma had been reported thrice in medical literature till date, all presenting with peritonitis. We here report a case spontaneous intraperitoneal rupture of biliary cystadenoma presenting as ascites without peritonitis.