Datasets for "Terahertz magneto-photocurrents in the topological insulator Bi2Se3 probe its topological surface states", Phys. Rev. Lett. (2026), DOI: https://doi.org/10.1103/yvbq-rdkz Chihun In,1,2 Genaro Bierhance,1,2 Deepti Jain,3 Tom S. Seifert,1 Oliver Gueckstock,1 Roberto Mantovan,4 Seongshik Oh,3,5 Tobias Kampfrath1,2 1Department of Physics and Center for Chiral Electronics (CCE), Freie Universität Berlin, 14195 Berlin, Germany 2Department of Physical Chemistry, Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany 3Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA 4CNR-IMM, Unit of Agrate Brianza, Agrate Brianza 20864, Italy 5Center for Quantum Materials Synthesis, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA The datasets are provided for Figures 1-3, 5, and 6 of the main text. Files are provided as tab-separated text files with descriptive column headers.