  We first study coupled Hirota-Iwao modified KdV (HI-mKdV) systems and give
all possible local and nonlocal reductions of these systems. We then present
Hirota bilinear forms of these systems and give one-soliton solutions of them
with the help of pfaffians. By using the soliton solutions of the coupled
HI-mKdV systems for $N=2,3,$ and $N=4$ we find one-soliton solutions of the
local and nonlocal reduced equations.
