We report the observation of coherent structures in coupled map lattic
es. We define the coherent structures as those in which the values of
the dynamical variables follow a certain pattern. Larger size coherent
structures are observed as the coupling parameter increases. There is
also an increase in the number of structures with a given size or lif
etime. If noise is added to the system, then there is a considerable i
ncrease in the number as well as the size of coherent structures.