George Leslie, 1st Earl of Rothes (c. 1406/1417–1490) was a Scottish nobleman and the first to hold the title of "Earl of Rothes", a hereditary title of the ruler of Leslie, Fife and the lands belonging to the Earl of Rothes.
Created Lord Leslie in 1445, the title of Earl of Rothes was created in 1458 in the Peerage of Scotland for him by James II of Scotland (not to be confused with James VII/II of England). He was born sometime between 1406-1417 and died in 1490, his rule as earl was c. 1458-1490, he was succeeded by his son also called George Leslie or as some call him George Leslie the Second/George Leslie II.
He was the son of Lord James Leslie, the 4th Earl Leslie, a title given before Earl of Rothes. Not much is known of the title except his father may of been the last to hold it. He was the brother of Elizabeth Leslie and father of of George Leslie, First Laird of Aikenway; Christian Sinclair, Countess of Orkney; Andrew Leslie, Master of Rothes; Lady Elizabeth Leslie and John Leslie, First Laird of Pitnamoon. He was also the husband of Margaret Lundie; Christina Halyburton and Elizabeth Campbell.
He was given the title Lord Leslie in 1445 and 13 years later in 1458 was given the title of Earl of Rothes by James II of Scotland. He died in 1490 after having the title for 32 years, he was between 76-92 years old at the time. (Most likely 84).
He was succeeded by his son George Leslie II who ruled as Earl from 1492-1509, it is unknown why there was a brief interregnum of Earls from 1490-1492 also some say James IV prevented him from being Earl until 1492.