XET may refer to:
XET-AM 990 in Monterrey, Nuevo León, now owned by Grupo Multimedios Estrella de Oro and known as "La T Grande" XET-FM 94.1 in Monterrey, Nuevo León XET-TDT (channel 31, virtual 6) in Monterrey, Nuevo León, now owned by Televisa Xyloglucan endo-transglycosylase, an enzyme involved in plant cell wall structure