Big Little Lies is an American black comedy drama television series based on the 2014 novel of the same name 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 is a 2014 novel written by Liane Moriarty. It was published in July 2014 by Penguin Publishing. The novel made the New York Times Best Seller list. In 2015, it was a recipient of the Davitt Award.