Mark Achbar (born in Ottawa in 1955) is a Canadian filmmaker, best known for The Corporation (2003), Manufacturing Consent: Noam Chomsky and the Media (1994), and as an Executive Producer on over a dozen feature documentaries.

Achbar is a graduate of Syracuse University's Fine Arts Film Program. He interned in Hollywood on the children's TV programme Bill Daily's Hocus Pocus Gang, followed by three-years in Toronto with Sunrise Films on its documentary series Spread your Wings and briefly on the CBC/Disney series Danger Bay. He subsequently worked with his friend, director/writer Robert Boyd, and received a Gemini nomination for Best Writer on The Canadian Conspiracy, a cultural/political satire for CBC and HBO's Comedy Experiments hosted by Martin Mull, and featuring Canadian-born stars: Eugene Levy, Lorne Greene, Leslie Nelson, William Shatner, Morley Safer, Howie Mandel, Peter Jennings, John Candy, Dave Thomas, Margot Kidder, and Anne Murray. The fake documentary chronicled Canada’s secret takeover of the United States. The program won a Gemini for Best Entertainment Special and was nominated for an International Emmy.