 The Endomapper dataset is a collection of complete endoscopy sequences acquired during regular medical practice that aims to facilitate the development and evaluation of visual simultaneous localization and mapping, VSLAM, methods in real endoscopy data, containing more than 24 hours of video and including endoscope calibration as well as the original calibration videos. This article was authored by Pablo Azagra, Carlos Sostres, Angel Fernandez, and others.