John Francis Moore is an American comic book writer known for stints as writer on such Marvel Comics series as X-Force, X-Factor, Doom 2099 and X-Men 2099. He also wrote Elseworld's Finest and co-wrote Batman/Houdini: The Devil's Workshop with Howard Chaykin for DC's Elseworlds series, and was the writer for Howard Chaykin's American Flagg! series.