Wonder Woman is a superhero created by the American psychologist and writer William Moulton Marston (pen name: Charles Moulton), and artist Harry G. Peter for DC Comics. Marston's wife, Elizabeth, and their life partner, Olive Byrne, are credited as being his inspiration for the character's appearance.

Wonder Woman appears in American comic books published by DC Comics. The character is a founding member of the Justice League. The character first appeared in All Star Comics #8 published October 21, 1941 with her first feature in Sensation Comics #1 in January 1942. The Wonder Woman title has been published by DC Comics almost continuously ever since. In her homeland, the island nation of Themyscira, her official title is Princess Diana of Themyscira. When blending into the society outside of her homeland, she sometimes adopts her civilian identity Diana Prince.

Wonder Woman's origin story (from Golden to Bronze Age) relates that she was sculpted from clay by her mother Queen Hippolyta and was given a life as an Amazon, along with superhuman powers as gifts by the Greek gods. In 2011, DC changed her background with the retcon that she is the biological daughter of Zeus and Hippolyta, jointly raised by her mother and her aunts Antiope and Menalippe. The character has changed in depiction over the decades, including briefly losing her powers entirely in the late 1960s; by the 1980s, artist George Perez gave her an athletic look and emphasized her Amazonian heritage. She possesses an arsenal of magical items, including the Lasso of Truth, a pair of indestructible bracelets, a tiara which serves as a projectile, and, in older stories, a range of devices based on Amazon technology.

Wonder Woman's character was created during World War II; the character in the story was initially depicted fighting Axis forces as well as an assortment of colorful supervillains, although over time her stories came to place greater emphasis on characters, deities, and monsters from Greek mythology. Many stories depicted Wonder Woman freeing herself from bondage, which counterpointed the "damsels in distress" trope that was common in comics during the 1940s. In the decades since her debut, Wonder Woman has gained a cast of enemies bent on destroying her, including classic villains such as Ares, Cheetah, Circe, Doctor Poison, Giganta, Doctor Psycho, Maxwell Lord, along with more recent adversaries such as Veronica Cale and the First Born. Wonder Woman has also regularly appeared in comic books featuring the superhero teams Justice Society (from 1941) and Justice League (from 1960).

The character is an archetypical figure in popular culture recognised around the world, in part due to being widely adapted into television, film, animation, merchandise, and toys. October 21 is Wonder Woman Day, commemorating the release of her first appearance in All Star Comics #8 (with the exception of 2017 which held the day on June 3 to tie in with the release of the film of the same name). Wonder Woman has been featured in various media from radio to television and film, and appears in merchandise sold around the world, such as apparel, toys, dolls, jewelry, and video games. Shannon Farnon, Susan Eisenberg, Maggie Q, Lucy Lawless, Keri Russell, Rosario Dawson, Cobie Smulders, Rachel Kimsey and Stana Katic among others, have provided the character's voice for animated adaptations. Wonder Woman has been depicted in both film and television by Cathy Lee Crosby, Lynda Carter, and in the DC Extended Universe films by Gal Gadot.