PacGeo is an open access geospatial data repository for the Pacific Region providing premier geophysical, geodetic, and marine spatial data sets. Developed through collaboration between the GeoScience Division of Secretariat of the Pacific Community (GSD/SPC), University of Sydney, Geoscience Australia (GA), and GRID-Arendal. The development of PacGeo was combined with targeted training and capacity building activities conducted at the Pacific Maritime Boundary Working Group Meetings, held twice yearly at the University of Sydney and at other ad hoc events in the region.