  We show that direct CP violation in semi-leptonic and leptonic decays can
occur in multi-Higgs doublet extensions of the electroweak standard model with
flavor changing neutral currents. For pion and lepton decays these $CP$
violating effects cannot be constrained directly by experimental data since up
to now the branching ratio of the decays $\pi^-$ and $\mu^-$ have not been
measured in laboratory.
