The name Darcy means Dark One and is of French origin. Darcy is name that's been used by parents who are considering unisex or non-gendered baby names--baby names that can be used for any gender.
The given name Darcy is from an English surname, originally derived from the French "d'Arcy." D'Arcy indicated a family from Arcy, France.
Mr. Darcy is the famous love interest in Jane Austen's novel, Pride and Prejudice.