  We show that charged-lepton masses can be radiatively induced in multi-Higgs
doublet models (NHDMs) through the renormalization group running of Yukawa
couplings from high to low energies. Some extreme examples of electron and muon
mass generation are discussed in the context of two and three Higgs doublet
models. It is also shown that quantum corrections to the Yukawa couplings can
be naturally of the same order as the tree-level values. We also comment on the
implications of considering extensions of NHDMs in which right-handed neutrinos
are added.
