Focused on ‘delivering the science we need for the ocean we want’, the Conference will take place over three days from 10 to 12 April at the Barcelona International Convention Centre and will be part of an entire Ocean Decade Week that will take place throughout Barcelona from 8 to 12 April 2024. Hosted by Spain and co-organized with UNESCO's Intergovernmental Oceanographic Commission (IOC/UNESCO), this international event will bring together various actors, including governments, decision-makers, maritime sectors, philanthropy, academia, the private sector, and civil society. All these voices will engage in a constructive dialogue around progress and joint priorities for the future of the Ocean Decade and continued success of ocean sustainability efforts, across the science – policy – society interface.