AJP or ajp may refer to: American Journal of Philology, published by Johns Hopkins University Press American Journal of Psychiatry, published by the American Psychiatric Association American Journal of Psychology, published by the University of Illinois Press American Journal of Physics, published by the American Association of Physics Teachers and the American Institute of Physics American Journal of Physiology, published by the American Physiological Society Asian Jake Paul, single by American Youtuber IDubbbz Australasian Journal of Philosophy, published by the Australasian Association of Philosophy AJP Motos, a Portuguese motorcycle brand Animal Justice Party, a political party in Australia focusing on animal rights Apache JServ Protocol, protocol for computer servers All Japan Pro Wrestling, Japanese professional wrestling promotion South Levantine Arabic (deprecated ISO 639-3 code) AJP6 and AJP8, TVR engines