Simon Hartog (8 February 1940 – 18 August 1992) was a British filmmaker who worked as both director and producer. He helped develop an independent film industry in the United Kingdom (UK), founding London Film-Makers' Co-op in the 1960s, key to the avant-garde; working on independent documentaries, and founding the production company, www.largedoorltd.com Large Door Ltd. Through the Independent Filmmakers' Association, he campaigned for an independent Channel 4. Through his company, Hartog produced a series on world cinema, "Visions," that ran on the channel for three years.