  We explore realizations of minimal flavor violation (MFV) for leptons in the
simplest seesaw models where the neutrino mass generation mechanism is driven
by new fermion singlets (type I) or triplets (type III) and by a scalar triplet
(type II). We also discuss similarities and differences of the MFV
implementation among the three scenarios. To study the phenomenological
implications, we consider a number of effective dimension-six operators that
are purely leptonic or couple leptons to the standard-model gauge and Higgs
bosons and evaluate constraints on the scale of MFV associated with these
operators from the latest experimental information. Specifically, we employ the
most recent measurements of neutrino mixing parameters as well as the currently
available data on flavor-violating radiative and three-body decays of charged
leptons, mu -> e conversion in nuclei, the anomalous magnetic moments of
charged leptons, and their electric dipole moments. The most stringent
lower-limit on the MFV scale comes from the present experimental bound on mu ->
e gamma and can reach 500 TeV or higher, depending on the details of the seesaw
scheme. With our numerical results, we illustrate some important differences
among the seesaw types. In particular, we show that in types I and III there
are features which can bring about potentially remarkable effects which do not
occur in type II. In addition, we comment on how one of the new effective
operators can induce flavor-changing dilepton decays of the Higgs boson, which
may be probed in upcoming searches at the LHC.
