  We show that supersymmetry and inflation, in a broad class of models,
generically lead to formation of primordial black holes (PBHs) that can account
for dark matter. Supersymmetry predicts a number of scalar fields that develop
a coherent condensate along the flat directions of the potential at the end of
inflation. The subsequent evolution of the condensate involves perturbative
decay, as well as fragmentation into Q-balls, which can interact by some
long-range forces mediated by the scalar fields. The attractive scalar
long-range interactions between Q-balls facilitates the growth of Q-balls until
their ultimate collapse to black holes. For a flat direction lifted by
supersymmetry breaking at the scale $\Lambda\sim 100$ TeV, the black hole
masses are of the order of $(M_{\rm Planck}^3/\Lambda^2)\sim 10^{22}$ g, in the
allowed range for dark matter. Similar potentials with a lower scale $\Lambda$
(not necessarily associated with supersymmetry) can result in a population of
primordial black holes with larger masses, which can explain some recently
reported microlensing events.
