The discovery of one or several Higgs bosons will be fundamental for a better understanding of the mechanism of electroweak symmetry-breaking. In the standard model, one Higgs boson is predicted, however the Higgs boson mass is not theoretically predicted. In supersymmetric theories, the Higgs sector is extended to contain at least two doublets of scalar fields, leading to the prediction of five physical Higgs particles. Present experimental limits on Higgs boson searches will be presented, followed by a discussion of the prospects of Higgs boson discovery at the LHC.