  In this paper, we introduce Unitary Flavour Violation to produce Multi-Higgs
Doublets Models where all flavour parameters are contained within three unitary
matrices. After that, we identify two of its subclasses, the left and right
models, which have naturally suppressed tree-level Flavour Changing Neutral
Couplings that easily avoid the experimental constraints derived from neutral
meson mixing. Then, we show that left models can accomodate spontaneous CP
violation when all quarks have Flavour Changing Neutral Couplings. Finally, we
illustrate these concepts by considering a specific implementation with three
Higgs doublets.
