A Heist with Markiplier is a 2019 interactive comedy film written and directed by Mark Fischbach, better known by his online pseudonym Markiplier. The film stars Fischbach, as well as Rosanna Pansino, Matthew Patrick, and Chance Morris in major roles. It follows Fischbach on a heist with his assistant (the audience's lens) that goes wrong. If a part of the special is continuous, two end cards will direct viewers to different endings, of which there are 31.

Following the success of Fischbach's previous interactive video A Date with Markiplier in 2017, he wrote the script for the special a year later, although production did not start until 2019. The special was released on YouTube Premium for free on October 30, 2019, and received positive reviews from critics and audiences, who particularly praised the engagement for the audience.