Ron Marz is an American comic book writer. He is well known for his work on Silver Surfer and Green Lantern, as well as the Marvel vs DC crossover and Batman/Aliens. He also worked on the CrossGen Comics series Scion, Mystic, Sojourn, and The Path. At Dark Horse Comics he created Samurai: Heaven and Earth and various Star Wars comics. He has also done work for Devilís Due Comicsís Aftermath line, namely Blade of Kumori.
While being chiefly responsible for bringing popularity back to Green Lantern and introducing a new generation (and boost in sales) to the series, Marz received criticism from factions of the fandom for his part in turning the character of Hal Jordan into a mass murderer in order to make way for a new Green Lantern character, Kyle Rayner. He has also been criticized for the perceived misogynistic tone of his writing, in particular a story he wrote for Green Lantern which inspired the name of the Women in Refrigerators website. Marz reported receiving numerous hate letters and death threats.  He returned to the Green Lantern series after an absence to pen the final arc of the book's third volume, then the 12-issue "Ion" maxi-series. He will write a "Parallax" one-shot special this Fall.
As of 2007, Marz's current work includes a number of Top Cow books including Witchblade and an upcoming Cyberforce relaunch. For DC Comics, he is currently writing Ion, a 12 part comic book that follows the Kyle Rayner character after the One Year Later event.
Having been a lifelong fan of the character, Ron was the brain behind Moonstone Books' 2006 Annual featuring The Phantom, and was responsible for getting writers Chuck Dixon, Mike Bullock, Tony Bedard, and Rafael Nieves participate with chapters for the book. Marz has also signed on to write a short story with the character for one of Moonstone's upcoming Phantom prose collections.
Recently, Virgin Comics announced that Marz would be joining as editor of three of their Shakti Line titles: Devi, Ramayan 3392 A.D. and The Sadhu.