Big Little Lies is an American black comedy drama television series based on the 2014 novel by Liane Moriarty. Created and written by David E. Kelley, it aired on HBO from February 19, 2017, to July 21, 2019, encompassing 14 episodes and two seasons. Originally billed as a miniseries, Jean-Marc Vallée directed the first season, while Andrea Arnold directed the second season. In November 2023, Nicole Kidman stated a third season would be made.

Big Little Lies stars Kidman, Reese Witherspoon, Shailene Woodley, Laura Dern, and Zoë Kravitz as five women in Monterey, California, who become embroiled in a homicide investigation. Alexander Skarsgård, Adam Scott, James Tupper and Jeffrey Nordling also feature in supporting roles. For the second season, Meryl Streep joined the main cast while Kathryn Newton and Iain Armitage were upgraded following their appearances in recurring capacities.

The series has received critical acclaim, particularly for its writing, directing, acting, production values, cinematography and soundtrack. The first season received 16 Primetime Emmy Award nominations and won eight, including Outstanding Limited Series, a directing award for Vallée, and acting awards for Kidman, Skarsgård, and Dern. The trio also won Golden Globe Awards in addition to a Best Miniseries or Television Film win for the series. Kidman and Skarsgård also received Screen Actors Guild Awards for their performances.