The best available values of the 238U neutron capture cross section in the range of a few keV to 15 MeV are derived by evaluation of the experimental techniques and reference cross sections and, where necessary, revising and rejecting experimental values. A principal objective is to obtain 238U capture cross sections which are consistent with fission cross sections previously selected by the author and which can, therefore, be used for consistent analysis of fast reactors. All available experiments are discussed and a detailed tabulation of the individual experimental data and selected best cross sections is given.