John Wadsworth Barnes (March 25, 1920 – June 27, 2000) was an American film director and producer. He was most active in the educational film industry, producing, directing and writing for Encyclopædia Britannica Films. In his career he worked on and helped create over 100 film projects. He produced the Academy Award nominated documentary The Living City. He wrote for a radio drama series, made experimental Bolex films, and produced the film To Live Together.