When people go missing on migration journeys, their disappearance has reverberating effects on their families and communities left behind. In 2019-2020, IOM’s Global Migration Data Analysis Centre (GMDAC) and a team of independent researchers carried out a project in Ethiopia, Spain, the United Kingdom and Zimbabwe with the aim of learning how people with missing migrant relatives cope with the absence of their loved ones while actively seeking answers, and how they could be better supported in their efforts by governments and other actors.