  In this brief paper, we show that atom interferometer experiments such as
MAGIS, AION or AEDGE have the potential to not only probe very light dark
matter models, but they will also probe quantum gravity. We show that the
linear coupling of a singlet scalar dark matter particle to electrons or
photons is already ruled out by our current understanding of quantum gravity
coupled to data from torsion pendulum experiments. On the other hand, the
quadratic coupling of scalar dark matter to electrons and photons has a large
viable parameter space which will be probed by these atom interferometers.
Implications for searches of quantum gravity are discussed.
