The L Word is a television drama series that aired on Showtime in the United States from 2004 to 2009. The series follows the lives of a group of lesbian and bisexual women who live in West Hollywood, California. The premise originated with Ilene Chaiken, Michele Abbott and Kathy Greenberg; Chaiken is credited as the primary creator of the series and also served as its executive producer.

The L Word featured television's first ensemble cast of lesbian and bisexual female characters, and its portrayal of lesbianism was groundbreaking at the time. One of the series' pioneering hallmarks was its explicit depiction of lesbian sex from the female gaze, at a time when lesbian sex was "virtually invisible elsewhere on television." It was also the first television series written and directed by predominantly queer women.

The L Word franchise led to the spin-off reality show The Real L Word (2010–2012) as well as the documentary film L Word Mississippi: Hate the Sin (2014), both of which aired on Showtime. A sequel television series, The L Word: Generation Q, debuted in December 2019 and was canceled after three seasons in 2023.