This study examines expert opinion on the strategies which can be enacted to promote, develop, and implement a femicide data collection system in Europe. The study used concept mapping, an integrated mixed methods approach, to examine the views of European experts on the actions needed to improve femicide data collection systems. The experts included in the study were members of the EU-Cost-Action on femicide. The COST Action entitled "Femicide Action IS1206" brings together the top-level experts on femicide from 27 countries. The researchers examined differences in priorities based on the level of human development index of the experts' countries. The strategies to institutionalize national databases and raise public awareness is viewed with high relevance among participants. Media involvement was identified as the most feasible strategy to improve the monitoring of femicide. By taking these actions, the availability, collection, and better comparability of data on femicide can be achieved.