During the last quarter of 2020, Regional Agricultural Research and Extension Organisations (RREO) in Africa, Asia, and Latin America jointly carried out rapid appraisals to map the innovation environment and identify and document initiatives aimed at strengthening Agricultural Innovation Systems (AIS). The focus was on functional capacity development with a view to exploring ways in which RREO can support the development of these capacities and integrate them with technical capacities. A combination of literature reviews, case studies, and stakeholder surveys was used to gather information. The results were documented in three separate reports which are available from the RREO. In the present document, key findings from the regional reports are presented and discussed in this report