summary This article deals with the question of whether the recently published Multidisciplinary guideline on Personality disorders is unreservedly applicable to older persons. It is concluded that the guideline is on the whole of clinical relevance with regard to older persons, but for such persons certain aspects of the guideline concerning for instance the course of the disorder, diagnosis and treatment, need to be modified. Since the Netherlands has a steadily ageing population, greater concern for older persons with personality disorders is not only of clinical relevance, but is also essential for scientific research in the future.