ASZED (African Schizophrenia EEG Dataset) is the first publicly available EEG dataset from African indigenous populations for schizophrenia studies. The dataset contains EEG recordings from 76 schizophrenia patients and 77 healthy controls across multiple paradigms: resting state, cognitive tasks, auditory oddball (MMN), and 40Hz stimulation (ASSR). Recorded at two Nigerian sites using standardized protocols, ASZED aims to improve representation of African populations in computational psychiatric research.