Carol Susan Jane Danvers is a character appearing in American comic books published by Marvel Comics. Created by writer Roy Thomas and artist Gene Colan, the character first appeared as an officer in the United States Air Force and a colleague of the Kree superhero Mar-Vell in Marvel Super-Heroes #13 (March 1968). Danvers later became the first incarnation of Ms. Marvel in Ms. Marvel #1 (cover-dated January 1977) after her DNA was fused with Mar-Vell's during an explosion, giving her superhuman powers. Debuting in the Silver Age of comics, the character was featured in a self-titled series in the late 1970s before becoming associated with the superhero teams the Avengers and the X-Men. The character has also been known as Binary, Warbird, and Captain Marvel at various points in her history.

Carol Danvers has been described as one of Marvel's most notable and powerful female heroes, being labelled as a symbol of female empowerment. Since her original introduction in comics, the character has been featured in various other Marvel-licensed products, including video games, animated television series, and merchandise such as trading cards. Brie Larson portrays Carol Danvers in the live-action Marvel Cinematic Universe films Captain Marvel, Avengers: Endgame (both 2019), Shang-Chi and the Legend of the Ten Rings (2021), and The Marvels (2023). Mckenna Grace portrayed a young Carol in Captain Marvel. Alexandra Daniels voices alternate reality versions of the character in the Disney+ animated series What If...? (2021).

In an interview, Gerry Conway recalled the reason why Danvers was turned into a super hero, "It actually came about for fairly uncreative reasons... there was this idea, that I was kicking people off books in order to take over writing their books, this was of course not the case, at least from my point of view but given that how was they felt, I said to Stan," "well is there any way that we could create some stuff so I'm not kicking people off books?" Stan had either just created She-Hulk or was thinking about creating her," and we thought, 'can we come up with another female super hero, that can use the Marvel name?'"

The character debuted in Marvel Super-Heroes #13 (March 1968) by writer Roy Thomas and artist Gene Colan. In the story, she is an officer in the United States Air Force and Security Chief of a restricted military base, where Danvers meets Dr. Walter Lawson, the human alias of alien Kree hero Captain Marvel. In a later story, Danvers is caught in the explosion of a Kree device after trying to get close to Captain Marvel. Although Captain Marvel manages to save her life, Danvers sustains serious injuries.

Danvers resurfaces with superhuman abilities and becomes the hero Ms. Marvel (created by writer Gerry Conway and artist John Buscema) in a self-titled series in January 1977, at first written by Gerry Conway and later by Chris Claremont. In the series, she is the editor of Women Magazine, a spin-off of the Daily Bugle. It is revealed that the energy exposure from the explosion of a device called the "Psyche-Magnetron" caused Danvers's genetic structure to meld with Captain Marvel's, effectively turning her into a human-Kree hybrid. Ms. Marvel had a series of semi-regular appearances in The Avengers, with additional appearances with the Defenders, Spider-Man, the Thing, and Iron Man.

At the time of the publication of Ms. Marvel #1 in 1977, the title was self-consciously socially progressive for its time. This was reflected in the use of the word "Ms.", at the time associated with the feminist movement, and in Danvers fighting for equal pay for equal work in her civilian identity.

In The Avengers #200 (October 1980), which was written by Bob Layton, David Michelinie, George Pérez, and Jim Shooter, Ms. Marvel is kidnapped by a character named Marcus (the apparent son of Avengers foe Immortus) and taken to an alternate dimension, where she is raped by Marcus and impregnated. She gives birth on Earth to a child that rapidly ages into another version of Marcus, who is ultimately unable to remain on Earth after Hawkeye mistakenly damages his machine and takes Ms. Marvel back to the alternate dimension with no opposition from the Avengers, who perceive Ms. Marvel and Marcus to have fallen in love. Comic book historian Carol A. Strickland criticized the storyline in an essay, "The Rape of Ms. Marvel", due to the storyline implying Marcus to have potentially brainwashed Danvers into falling in love with him. Citing Marcus' line, "Finally, after relative weeks of such efforts—and admittedly, with a subtle boost from Immortus' machines—you became mine", Strickland posited that this constituted rape. As a former writer of the solo title, Chris Claremont also commented on the inappropriateness of the storyline, having been disallowed from having the character have a normal child and be a single mother.

Claremont wrote a follow-up to the Marcus story in The Avengers Annual #10 (1981). In that story, Danvers is revealed to have returned to Earth—courtesy of Immortus's technology after Marcus continued to age and die of old age—but is attacked by the mutant Rogue, who permanently absorbs Danvers' abilities and memories. Danvers' memories are restored by Professor X, and an angry confrontation with the Avengers concerning their failure to realize Marcus had brainwashed her follows.