Nelson Alexander Ross is an American comic book writer and artist known primarily for his painted interiors, covers, and design work. He first became known with the 1994 miniseries Marvels, on which he collaborated with writer Kurt Busiek for Marvel Comics. He has since done a variety of projects for both Marvel and DC Comics, such as the 1996 miniseries Kingdom Come, which he also cowrote. Since then he has done covers and character designs for Busiek's series Astro City, and various projects for Dynamite Entertainment. His feature film work includes concept and narrative art for Spider-Man (2002) and Spider-Man 2 (2004), and DVD packaging art for the M. Night Shyamalan film Unbreakable (2000). He has done covers for TV Guide, promotional artwork for the Academy Awards, posters and packaging design for video games, and his renditions of superheroes have been merchandised as action figures.

Marvels is a four-issue miniseries comic book written by Kurt Busiek, painted by Alex Ross and edited by Marcus McLaurin. It was published by Marvel Comics in 1994.