[en] We have calculated the inclusive single production of hadrons in neutral and charged current deep-inelastic scattering at next-to-leading order using perturbative QCD to first and second order in α_s. Virtual and real corrections were calculated, and a Monte Carlo program was implemented to obtain cross sections at NLO in the anti MS scheme using the dipole subtraction method. Our results to first order in α_swere compared to charged hadron production data from the H1 and ZEUS collaborations. A comparison was also made to second order in α_s with π⁰ and D^*± production data from the H1 collaboration. We have also studied the effect of the Z boson contribution in these processes and calculated the cross sections for charged-current single hadron production in deep inelastic scattering. (orig.)