The ²³⁸U(n, γ)²³⁹U reaction cross-sections at average neutron energies of 5.9 ± 0.5 and 15.5 ± 0.7 MeV from the ⁷Li(p, n) reaction have been determined using neutron activation and off-line γ-ray spectrometric technique. The ²³⁸U(n, 2n)²³⁷U reaction cross-section at neutron energy of 15.5 ± 0.7 MeV has also been determined using the same technique. The ²³⁸U(n, γ)²³⁹U and ²³⁸U(n, 2n)²³⁷U reaction cross-sections have been calculated theoretically using nuclear reaction model based TALYS-1.4 code and are found to be in general agreement with measured experimental data. The present data are compared with the values from the latest available evaluated nuclear data libraries and found to be agreement with the data of ENDF/B-VII.1, JENDL-4.0 and JEFF-3.1/A but not with that of CENDL-3.1.