We construct dual supergravity descriptions of field theories and little st
ring theories with light-like non-commutativity. The field theories are rea
lized on the world-volume of Dp-branes with light-like NS B-field and M5-br
anes with light-like C-field. The little string theories are realized on th
e world-volume of NS5-branes with light-like RR A-fields. The supergravity
backgrounds are closely related to the A = 0, B = 0, C = 0 backgrounds. We
discuss the implications of these results. We also construct dual supergrav
ity descriptions of ODp theories realized on the worldvolume of NS5-branes
with RR backgrounds.