George Ashby (name uncertain) (died 1537) was a martyred English Cistercian monk. A monk of this name, or Astleby (perhaps a surname taken from a location) is mentioned in various English martyrologies, as a victim of government reprisals after the Pilgrimage of Grace.
This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed (1913). Catholic Encyclopedia. Robert Appleton Company.