Baron Erskine of Rerrick, of Rerrick in the County of Kirkcudbright, was a title in the Peerage of the United Kingdom. It was created in 1964 for Sir John Erskine, 1st Baronet, who served as Governor of Northern Ireland from 1964 to 1968. He had already been created a Baronet in the Baronetage of the United Kingdom on 5 July 1961. He was succeeded by his son, the second Baron. On his death in 1995 both titles became extinct.