Oswald, O. Cist. (died after 1417) was a Cistercian monk and bishop in the late 14th century and early 15th century. There is an Oswald Botelere (Butler) granted a safe-conduct, along with 12 others, to enter England and study at the University of Oxford, in 1365, but this Oswald Butler cannot be shown to be the same as the later Oswald of Glenluce.