FLUKA is a general purpose Monte Carlo code for transport and interaction of particles. In particular it contains detailed nuclear models which have been successfully tested in hadronic interactions. The same approach can be successfully applied to neutrino interactions. Here we review the main features of the FLUKA nuclear models and their application to the generations of interactions of neutrinos with E\ge 100 MeV and proton decay.

PACS numbers: 13.15.+g, 25.30.Pt, 21.60.Ka, 24.10.Lx