Saint Mary (Jèrriais: Sainte Mathie) is one of the twelve parishes of Jersey in the Channel Islands. It is situated in the north west and covers an area of 3,604 vergées (6.5 km²).It borders four other parishes: Saint Ouen, Saint John, Saint Peter and Saint Lawrence. The parish and its eponymous church derive their name from a medieval monastery, probably destroyed during Viking raids some time between the 8th and 10th centuries.