Lakes and reservoirs play a very important role in the hydrological circle as a part of the ecosystem, but at the same time, they are significant to the human survival and activities, since they usually constitute the main resource for water supply. Therefore the study of lakes and reservoirs, in respect of either hydrodynamics or water quality, is essential. This work aims to summarize a number of applications of one-dimensional analysis of lakes and reservoirs in Greece performed by several researchers over the last few years using the coupled models DYRESM-CAEDYM. The coupled models were developed at the Center for Water Research of the University of Western Australia. A short description of the method used in the models and their limitations precedes the results of the simulations in Greek lakes (Trichonida, Plastiras, Vegoritis, Mornos). Finally the conclusions drawn from the results will be presented.