A method, system, and computer program product for dynamic password generation and authentication based on morphological groupings is provided. The method receives a set of morphological groups defining a plurality of character maps. The method receives selection of a subset of morphological groups by a user from the set of morphological groups. A set of characters input from the user are identified, with the set of characters forming a user selected password. The method generates a morphological password using the set of characters and the subset of morphological groups selected by the user. The method stores the morphological password in a password repository.