We consider minimally supersymmetric QCD in 2+1 dimensions, with Chern-Simons
and superpotential interactions. We propose an infrared $SU(N) \leftrightarrow
U(k)$ duality involving gauge-singlet fields on one of the two sides. It shares
qualitative features both with 3d bosonization and with 4d Seiberg duality. We
provide a few consistency checks of the proposal, mapping the structure of
vacua and performing perturbative computations in the $\varepsilon$-expansion.
