José F. Bonaparte (14 June 1928 – 18 February 2020) was a paleontologist from Argentina. He discovered and named many new dinosaurs from South America, including "Noasaurus", "Carnotaurus", "Saltasaurus", "Kritosaurus", "Alvarezsaurus", "Riojasaurus", and many, many others. He also discovered or described a number of archosaurs and primitive birds (such as "Iberomesornis") and assisted with the study of other dinosaurs, like "Giganotosaurus".