​The relevance of connectivity for marine biodiversity has been recognised in the negotiations for a new international legally binding instrument for the conservation and sustainable use of biodiversity of areas beyond national jurisdiction. This technical brief provides evidence to support future negotiations. It explains how connectivity can be considered in negotiations on three of the four ‘package elements’ of the instrument: area-based tools, environmental impact assessments and technology transfer and capacity building. This technical brief provides an opportunity to consider appropriate ways to include ecological connectivity in order to support the delivery of the ecosystem approach. This technical brief was produced as part of the Food and Agriculture Organization of the United Nations (FAO) and United Nations Environment Programme (UN Environment) jointly implemented Global Environment Facility (GEF) funded project entitled ‘Sustainable fisheries management and biodiversity conservation of deep-sea living resources and ecosystems in Areas Beyond National Jurisdiction’.