This is the data repository associated with the manuscript "CO2 and Tectonic Controls on Antarctic Climate and Ice-Sheet Evolution in the Mid-Miocene" containing all model output files relevant to the project. We use an ensemble of asynchronously coupled climate - ice sheet - vegetation model simulations spanning a range of CO2 concentrations, Transantarctic Mountain uplift scenarios, and glacial/interglacial climatic conditions to identify climate and ice-sheet conditions consistent with Antarctic mid-Miocene terrestrial and marine geological records. Details about the content of the data repository can be found in the readme.txt file located in the repository.