  In this letter, we propose a new model of fuzzy dark matter based on
Stueckelberg theory. Dark matter is treated as a Bose-Einstein condensate of
Stueckelberg particles and the resulting cosmological effects are analyzed.
Fits are understood for the density and halo sizes of such particles and
comparison with existing models is made. Certain attractive properties of the
model are demonstrated and lines for future work are laid out.
