BTX may refer to: Bildschirmtext, an interactive videotex system launched in 1983 in West Germany BTX (chemistry), a mixture of benzene, toluene and xylenes B't X, a science fiction manga and anime television series created by Masami Kurumada BTX (form factor), a form factor for PC motherboards Backstreets Magazine, also known as BTX, a popular Internet forum for fans of musician Bruce Springsteen Batrachotoxin, a neurotoxic poison that blocks sodium channels Botulinum toxin, the most potent neurotoxin known