This report describes the results of a CESSDA project to explore training needs in data discovery. Work was conducted by the UK Data Service and overseen by the CESSDA Training Group. Training for data discovery is a new area of work for CESSDA. The aim is to help users locate and navigate data collections relevant to their own research and teaching interests, data collections that may be stored in different locations and subject to different access conditions. To inform the development of training, the training needs assessment sought to establish the training topics that are important to users, current training provision and unmet needs for training.