Jach'a T'uxu or Jach'a Tuqu (Aymara jach'a big, t'uxu window, hole in the wall, tuqu goitre, Ref Bertonio "big window" or "big goitre", Hispanicized spelling Jachcha Thojo) is a 5358 meters mountain in the Cordillera Real in the Andes of Bolivia.