  We constrain the one-parameter class of TeVeS models by testing the theory
against both rotation curve and strong gravitational lensing data on galactic
scales, remaining fully relativistic in our formalism. The upshot of our
analysis is that -- at least in its simplest original form, which is the only
one studied in the literature so far -- TeVeS is ruled out, in the sense that
the models cannot consistently fit simultaneously the two sets of data without
including a significant dark matter component. It is also shown that the
details of the underlying cosmological model are not relevant for our analysis,
which pertains to galactic scales. The choice of the stellar Initial Mass
Function -- which affects the estimates of baryonic mass -- is found not to
change our conclusions.
