David Hackl (born February 7, 1963 in Toronto, Ontario) is a Canadian film director and production designer. Hackl was the production designer and second unit director for Saw II, Saw III and Saw IV; as well as for Repo! The Genetic Opera. He was once in talks to direct Saw IV, but Darren Lynn Bousman returned as the director. Later it was reported that Hackl would direct both Saw V and Saw VII, but eventually he only directed Saw V, while Saw VII was directed by Kevin Greutert, the editor of all Saw films to date, who also directed Saw VI. Despite negative critical reviews and mixed fan reviews, his direction in Saw V has been referred by Digital Spy as "slick direction". Hackl is set to direct the film adaption of the novel The Butcher Bride as well as Jeff Reher's spec script Endangered.

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