Greece is a mountainous Mediterranean country characterised by a variety of microenvironments. As a result, a great number of mixed forest types appear. These stands are natural by unevenaged stands with a lot of ecological and social advantages (as resistance against biotic and abiotic factors) high biodiversity and aesthetical beauty. For this reason, these forests must be protected and managed in a sustainable way, in order to fulfil their valuable services. This paper is dealing with the most important and representative mixed-species stands of Greece beginning from those existing in the lower elevations (zone of evergreen broadleaves) and continuing to the higher ones (zone of boreal conifers).