This Dictionary is an alphabetical index of the personal and clan names, given in a historically correct Manchu transliteration in opposition to the generally used Chinese transcription, which are registered in the Manchu version of the Genealogies of the Clans and Families of the Manchu Eight Banners (Jakun gusai Manjusai mukun hala be uheri ejehe bithe, better known by its Chinese title as Baqi Manzhou shizu tongpu), having the last imperial preface dated 1745. It comprises more than 42,000 names found among the 645 Manchu and the 234 Mongolian, Chinese and Korean clans and families forming the military and social basis of the Eight Manchu Banner army's multi-ethnic structure. Together with an analysis of the names' meaning and their formation process, an additional key for a correct reconstruction of the Manchu/Mongolian names and clans on the basis of their Chinese transcription is offered.