John de Sandford (died 2 October 1294) was Archbishop of Dublin.
Some, however, objected to this choice and Sandford resigned his claim; but he was elected a second time while he was in Rome, and on returning to Ireland was allowed to take up the office.
From 1288 to 1290, during a time of great political confusion, the archbishop acted as governor of Ireland.
Sandford served Edward I in the Great Cause over the succession to the Scottish throne in 1292 and also as an envoy to the German king, Adolf of Nassau-Weilburg, and the princes of the Empire.
His body was brought to Ireland and buried in his brother's monument at St. Patrick's Cathedral, Dublin.