Neutron scattering cross sections have been measured for 233U and 232Th, using rolled metal samples, in a moderated spectrum from a 5-mg 252Cf source. The scattered neutrons were detected by two 3He detectors in an annular geometry. The experimental data were corrected for thermal and epithermal fissions, epi-thermal scattering, air scattering, room background, and self-absorption. The self-absorption corrections for the four 233U targets, covering a wide range in thickness, were obtained from Monte Carlo calculations. Absorption corrections for the two 233Th targets were avoided by using standards having the same absorption thicknesses. The results obtained were 12.30 ± 0.70 b for 233U and 12.78 ± 0.30 b for 232Th relative to vanadium with an assumed scattering cross section of 5.02 ± 0.10 b. The corresponding values for the ENDF/B-III file are 14.06 and 11.92 b, respectively.