Despite significant improvements in the safety and efficacy of pancreatic surgery, post-operative pancreatic fistulae remain an unsolved dilemma. These occur when the transected pancreatic gland, pancreatic-enteric anastomosis, or both, leak rendering the patient at significant risk. They are especially important today since indications for resection (IPMN, carcinoma) continue to increase. This review considers definitions and classifications of pancreatic fistulae, risk factors, preventative approaches and offers management strategies for when they do occur. Key citations from the past seventeen years have been scrutinized, and together with personal experience, provide the basis for this review.