Lisbeth Salander is a fictional character created by Swedish author and journalist Stieg Larsson in his award-winning Millennium series. She first appeared in the 2005 novel The Girl with the Dragon Tattoo, as an antisocial computer hacker with a photographic memory who teams up with Mikael Blomkvist, an investigative journalist and publisher of a magazine called Millennium. Salander reappears in The Girl Who Played with Fire (2006) and The Girl Who Kicked the Hornets' Nest (2007), sequels that Larsson had written before he died in 2004.

Millennium is a series of Swedish crime novels, created by journalist Stieg Larsson. The two primary characters in the saga are Lisbeth Salander, an asocial computer hacker with a photographic memory, and Mikael Blomkvist, an investigative journalist and publisher of a magazine called Millennium. Seven books in the series have been published, with the first three, known as the "Millennium Trilogy", written by Larsson.