Justin "J-Po" Ponsor (April 20, 1977, San Diego, California, United States – May 18, 2019) was an American comics colorist.
Comics visionary Justin Ponsor was a prolific colorist and artist known for his brilliant contributions to the industry and his easy-going, compassionate spirit. He studied art, music, and writing at Palomar College in San Marcos, California and was an illustrator for the school’s newspaper. He broke into the comic book industry as a Flatter/Renderer and later became one of the preeminent color artists at Marvel Comics. Over the past 15 years, he worked as an inker, penciller, cover artist, and colorist on countless high-profile Marvel series. He lived to be 42 years old.