Marion Boyd (fl. late 15th century), also known as Margot or Margaret, was a mistress of King James IV of Scotland.
They had two children: Alexander, born about 1490, and Catherine, who married James Douglas, 3rd Earl of Morton.
She was related to Thomas Boyd, Earl of Arran, and a niece of the second wife of Archibald Douglas, 5th Earl of Angus. Her relationship with the king was linked with the rise and fall of Angus's influence at the court.