George Hay (c.1530–1588) was a Church of Scotland minister immediately after the Reformation, who served as Moderator of the General Assembly from March 1571.
He was certainly a Roman Catholic priest pre-Reformation, having been granted a dispensation from Pope Paul IV allowing him a joint benefice from both Rathven and "Eddleston", showing that he was serving both these communities.
[1] In October 1561, in the study of James McGill in Edinburgh, Hay was one of the group of clergy who jointly agreed to deprive Mary Queen of Scots of the Catholic mass.
In June 1562 the General Assembly asked him to support Superintendent John Willock in preaching at the vacant post at Carrick.
In 1575 he was made Commissioner of Caithness[1] In 1577, he undertook a major journey to Magdeburg with clergy from all of northern Europe to participate in the Augsburg Confession.