Sites pertaining to St. Odo (or Oda), Archbishop of Canterbury. He died in 959.

Sites dedicated to St. Osmund, bishop of Salisbury, d. 1099.

Sites pertaining to St. Oswald, King of Northumbria. He was killed in battle in 642, and is regarded as a martyr.

Oswald was a Dane and a nephew of St. Odo the Good. He became a Benedictine monk, bishop of Winchester and later Archbishop of York. He died in 992.

Information on St. Oswin, king of Deira, murdered in 651. He is venerated as a martyr.