Given the growing dilution of Buddhist identity and its tendency toward syncretism in Brazil, this paper works with the heuristic concept of a ‘Buddhism in Syncretic Shape.’ Since this concept is useful for better understanding some groups in Brazil, it is suggested that it can also provide interesting insights for the study of Buddhism in the West. This concept will be developed through a detailed description of Shingon in Brazil, which has undergone a religious synthesis with Catholicism and Afro-Brazilian religions.