Ann-Marie MacDonald (born October 29, 1958) is a Canadian playwright, novelist, actor and broadcast journalist who lives in Toronto, Ontario. The daughter of a member of Canada's military, she was born at an air force base near Baden-Baden, West Germany.

MacDonald won the Commonwealth Writers Prize for her first novel, Fall on Your Knees, which was also named to Oprah Winfrey's Book Club.

She received the Governor General's Award for Literary Merit, the Floyd S. Chalmers Canadian Play Award and the Canadian Author's Association Award for her play, Goodnight Desdemona (Good Morning Juliet).

She also appeared in the films I've Heard the Mermaids Singing and Better Than Chocolate, among others.

Her 2003 novel, The Way the Crow Flies, was partly inspired by the Steven Truscott case.

She also hosted the CBC Documentary series Life and Times from 1996 to 2007.

MacDonald's wife is playwright and theatre director Alisa Palmer.

Fall on Your Knees is a novel by Canadian playwright, actor and novelist Ann-Marie MacDonald. The novel takes place in late 19th and early 20th centuries and chronicles four generations of the complex Piper Family. It is a story of "inescapable family bonds, terrible secrets, and of miracles". Beginning in Cape Breton Island, Nova Scotia through the battlefields of World War I and ending in New York City, the troubled Piper sisters depend on one another for survival, at the hands of their dangerous father. The title was taken from the text of the popular Christmas song "O Holy Night." Fall on Your Knees was published by Knopf Canada in 1996 and won the Commonwealth Writers Prize, was shortlisted for the Giller Prize and was also a part of Oprah Winfrey's book club in 2002. It has been translated in to 17 languages.