CBC News said Gallant's publisher confirmed her death Tuesday.
Gallant is best known for her contributions to the New Yorker magazine and her many short-story collections, including "Montreal Stories," "Going Ashore" and "Home Truths."
"I believed that if I was to call myself a writer, I should live on writing. If I could not live on it, even simply, I should destroy every scrap, every trace, every notebook and live some other way," she said in a 1996 interview with the Paris Review.
Notable deaths of 2014 [PHOTOS]