Villainy Inc. is a team of fictional characters appearing in DC Comics publications and related media, commonly as an alliance of recurring adversaries of the superhero Wonder Woman. The group debuted in 1948’s Wonder Woman #28, though each of its eight initial members had previously appeared as villains in earlier Wonder Woman adventures. Historically, Wonder Woman #28 holds a distinction as the final issue of the series to be written by the heroine’s creator William Moulton Marston before his death.

Three different incarnations of Villainy Inc. have appeared in DC Comics publications: (1) the Golden Age version, led by Eviless, (2) the Modern Age version, led by Queen Clea, and (3) the Rebirth-era version, led by Doctor Psycho and masterminded by Hera. Of these, the Golden and Modern Age incarnations consisted exclusively of women characters, although three Golden Age figures among them – Blue Snowman, Doctor Poison and Hypnota – would likely be construed by 21st century readers as gender non-conforming. (Since 2021, Blue Snowman has been specifically presented by writers as a genderfluid character.)

The team was adapted for the 2019 Warner Brothers animated film Wonder Woman: Bloodlines, in which it was led by Doctor Cyber and masterminded by Veronica Cale.