Extreme four-dimensional dilaton black holes embedded into ten-dimensi
onal geometry are shown to be dual to the gravitational waves in strin
g theory. The corresponding gravitational waves are the generalization
of pp-fronted waves, called supersymmetric string waves. They are giv
en by the Brinkmann metric and the two-form field, without a dilaton.
The nondiagonal part of the metric of the dual partner of the wave tog
ether with the two-form field correspond to the vector field in the fo
ur-dimensional geometry of the charged extreme black holes.