The FISH CGIAR Research Program (CRP), initiated in 2017, is led by WorldFish together with its managing partners, the International Water Management Institute (IWMI), the Aquaculture and Fisheries Group at Wageningen University (WUR), the Australian Research Council Centre of Excellence in Coral Reef Studies at James Cook University (JCU), and the Natural Resources Institute at University of Greenwich (NRI). This review has been commissioned by the CGIAR Advisory Services Shared Secretariat (CAS Secretariat) Evaluation Function (CAS/Evaluation). The primary purpose of this independent review of the FISH CRP is to assess its quality of science, its effectiveness, and its future orientation. This review covers Phase II of the CRP (2017 through 2019).