Mark Shainblum (born 1963, the son of Max and Eva Shainblum) is a Canadian writer who lives in Montreal, Quebec, Canada. Though he has worked as a journalist and editor, Shainblum is best-known as a science fiction and comic book writer.

In the early 1980's, Shainblum published two issues of a comics and science fiction fanzine called blank">Orion: The Canadian Magazine of Time and Space, and later founded Matrix Graphic Series (later known as Matrix Comics), one of only a handful of independent comic book publishers in Canada at the time.

His published works include:

• Northguard, a post-modern Canadian superhero, created in the 1980's with illustrator _Gabriel Morrissette. Though Northguard was published as an independent comic book series and didn't achieve the notoriety of better-known Canadian superheroes like Richard Comely's Captain Canuck or Marvel Comics' Alpha Flight, it was well-received by critics and a core following of fans. The Quebec superheroine Fleur-de-Lys, a supporting character from the series, even made her way to a Canadian postage stamp in 1995.
• Angloman, co-created with Gabriel Morrissette. A humorous parody of politics in Shainblum's native province of Quebec, Angloman was first published in book form and then made the leap to two Montreal newspapers, the alternative newsweekly The Mirror and the mass-circulation daily Montreal Gazette.

With John Dupuis, Shainblum also co-edited the 1998 short story collection Arrowdreams: An Anthology of Alternate Canadas, which garnered an Aurora Award for Canadian science fiction in 1999. Shainblum was also a finalist in the 2001 international Mark Twain Writing Competition and recently published a story in Claude Lalumiere's anthology Island Dreams: Montreal Writers of the Fantastic from Vehicule Press. In 2002-03, he served as president of SF Canada, Canada's national association of science fiction and fantasy authors.