  We consider the commutators $[b,T]$ and $[b,I_{\rho}]$ on Orlicz-Morrey
spaces, where $T$ is a Calder\'on-Zygmund operator, $I_{\rho}$ is a generalized
fractional integral operator and $b$ is a function in generalized Campanato
spaces. We give a necessary and sufficient condition for the boundedness of the
commutators on Orlicz-Morrey spaces. To do this we prove the boundedness of
generalized fractional maximal operators on Orlicz-Morrey spaces. Moreover, we
introduce Orlicz-Campanato spaces and establish their relations to
Orlicz-Morrey spaces.
