OncoSil Medical Limited is an Australian medical device company that specializes in the development and commercialization of localized radiation therapy for pancreatic and bile duct cancer. The company's lead product is OncoSil, which is a brachytherapy device that is used to treat patients with locally advanced unresectable pancreatic cancer in combination with gemcitabine-based chemotherapy. OncoSil Medical Limited was formerly known as NeuroDiscovery Limited and was incorporated in 2005. The company is based in North Sydney, Australia.