Australia’s partnership with James Cook University (JCU) is supporting Pacific Island Countries and areas (PICs) to combat mosquito-borne diseases and improve community health and well-being through strengthened mosquito surveillance and control. JCU manages the Pacific Mosquito Surveillance Strengthening for Impact (PacMOSSI) consortium, which supports PICs to prevent, control and contain diseases such as dengue, malaria, Chikungunya and Zika. The consortium comprises 7 core institutions who partner with ministries of health in 21 PICs to build capacity and capability to implement evidence-based strategies and plans to combat mosquito-borne diseases across the region. This is achieved through situation reviews, improved data management and use, strategic planning, online courses, hands-on trainings, mentorship, technical guidance, supplies and equipment, operational research and citizen science.