Higgs physics at LEP-1

In e+e− annihilations at the Z pole near 91 GeV center-of-mass energy, the complete results from the general searches for the Higgs boson of the Minimal Standard Model (MSM) and for neutral and charged Higgs bosons of non-minimal Higgs models are reviewed for the four LEP experiments at CERN: ALEPH, DELPHI, L3 and OPAL. The search for Higgs bosons has been made possible by the analysis of their large data sets consisting of a total of about 18 million hadronic Z decays recorded from 1989 to 1995. No indication of a signal was observed in any search channel. Interpretations of the experimental results are given in the MSM and in extensions with an extra Higgs boson singlet and doublet, as well as in the Minimal Supersymmetric extension of the Standard Model (MSSM).