The Lisbon Workshop on Blue Natural Capital (BNC) took place on 3 and 4 October 2018 at the Lisbon Ocean Aquarium (Oceanário de Lisboa) in Portugal. It was hosted by the Oceano Azul Foundation (Fundação Oceano Azul) and prepared and chaired by R. Andreas Kraemer, Founder of Ecologic Institute and Director of the Foundation. The Earth Negotiations Bulletin (ENB) published a summary.