BTX can mean:

• Bildschirmtext
• Balanced Technology Extended, a computer motherboard form factor
• A mixture of Benzene, Toluene and Xylene
• The process plant that separates Benzene, Toluene and Xylene from the BTX chemical mixture
• B't X, a science fiction manga and anime television series created by Masami Kurumada
• BTX (boot loader), the standard boot loader for FreeBSD