The Irish and Scottish surname McMorrow is an anglicized form of the Gaelic name Mac Murchadha, a patronymic from the personal name Murchadh meaning “sea warrior,” from muir meaning “sea,” and cath meaning “battle.” The name is first recorded in Angus, Scotland in 1160 when Soland de Mureus was recorded as a charter witness by Ernaldus, Bishop of St. Andrews. The name is first recorded in the New World in 1757 when Phillip McMorrow arrived in Pennsylvania. Today there are approximately 1,700 bearers of the name Morrow living in the US.