May Agnes Fleming (pseudonyms, Cousin May Carleton, M. A. Earlie; November 15, 1840 – March 24, 1880) was a Canadian novelist.

She was "one of the first Canadians to pursue a highly successful career as a writer of popular fiction.

[2] She moved to New York two years after her first novel, Erminie; or The gypsy's vow: a tale of love and vengeance was published there (1863).

The exact count is unclear, since her works were often retitled, but is estimated at around 40, although some were not actually written by her, but were attributed to her by publishers cashing in on her popularity.

[7] At her peak, she was earning over $10,000 yearly, due to publishers granting her exclusive rights to her work.