The Dresden Files is a series of contemporary fantasy/mystery novels written by American author Jim Butcher. The first novel, Storm Front, was published in 2000 by Roc Books.

The books are written as a first-person narrative from the perspective of the main character, private investigator and wizard Harry Dresden, as he recounts investigations into supernatural disturbances in modern-day Chicago. Butcher's original proposed title for the first novel was Semiautomagic, which sums up the series' balance of fantasy and hard-boiled detective fiction.

As of 2020, Butcher has written 17 novels set in the Dresden Files universe, plus a number of short stories (some of which are collected in the anthologies Side Jobs and Brief Cases). The series has also been released in audiobook format, narrated by James Marsters. Other works set in the same fictional universe include graphic novels (several new stories, plus adaptations of the first two novels), and The Dresden Files Roleplaying Game. In 2007, a television series based on the novels aired for one season on the American Sci-Fi Channel.

In the world of The Dresden Files, magic—as well as vampires, demons, spirits, faeries, werewolves, outsiders, and other monsters—is real, and while the supernatural is still widely discredited, it is practiced by some members of society. Additionally, large portions of the globe (such as much of Central and South America) are mentioned as being largely under the control of supernatural factions. The White Council is an organization of human wizards, noted to wield significant economic power in the world, along with their supernatural power. Each species in the series (humans, faeries, vampires, etc.) has its own political and societal rules and organizations. The human wizards depend on the White Council, while faeries may belong to either of two Faerie Courts, or none at all. Vampires may belong to any of four vampire courts.

Harry Dresden works as the world's only "consulting wizard", accepting supernatural cases from both human and nonhuman clients, as well as the Chicago PD's Special Investigation unit. As the series progresses, Dresden takes on an increasingly important role in the supernatural world at large, as he works to protect the general public, making getting by as a working wizard and private investigator difficult for him. He finds himself facing off against an increasing variety of creatures (including other wizards), while facing the realization that his various cases may all be tied together behind the scenes and that his role might be even greater than he is willing to admit.