Nancy Drew is an American mystery drama television series based on the series of mystery novels about the titular character. The series was adapted for the CW by Noga Landau, Josh Schwartz, and Stephanie Savage and is produced by CBS Studios, in association with Fake Empire.

It is the third Nancy Drew television series, following The Hardy Boys/Nancy Drew Mysteries (1977–1979) and a 1995 Canadian-American version. Development for a new television series started in 2015 at CBS, then later at NBC. In 2018, the project moved to the CW, where the series was ordered for a pilot.

The series is narrated and led by the amateur sleuth Nancy Drew, played by Kennedy McMann, and features an ensemble cast with reimagined versions of the characters from the books: Leah Lewis as George Fan, Maddison Jaizani as Bess Marvin, Tunji Kasim as Ned Nickerson, and Alex Saxon as Ace. It also stars Scott Wolf as Carson Drew and Alvina August and Riley Smith as new characters invented for the series.

The series debuted on October 9, 2019, to mixed reviews. In March 2022, the series was renewed for a fourth and final season which premiered on May 31, 2023. The series finale aired on August 23, 2023.