Millie the Model was Marvel Comics' longest-running humor title, first published by the company's 1940s predecessor, Timely Comics, and continuing through its 1950s forerunner, Atlas Comics, to 1970s Marvel. The comic book series deals with Millie Collins, an aspiring model working for the Hanover Modeling Agency.

Atlas Comics was the 1950s comic-book publishing label that evolved into Marvel Comics. Magazine and paperback novel publisher Martin Goodman, whose business strategy involved having a multitude of corporate entities, used Atlas as the umbrella name for his comic-book division during this time. Atlas evolved out of Goodman's 1940s comic-book division, Timely Comics, and was located on the 14th floor of the Empire State Building. This company is distinct from the 1970s comic-book company, also founded by Goodman, that is known as Atlas/Seaboard Comics.