Olivia Hastings Holt (born August 5, 1997) is an American actress and singer. She starred in the Disney XD series Kickin' It, Disney Channel Original Movie Girl vs. Monster, and the Disney Channel Original Series I Didn't Do It. From 2018 to 2019, she portrayed the titular role Tandy Bowen / Dagger in the Freeform series Cloak & Dagger. In 2021, she portrayed Kate Wallis in Cruel Summer.
Holt had voice roles in the films Tinker Bell and the Legend of the NeverBeast (2014) and Gnome Alone (2017), and starred in the feature films Class Rank (2017), Same Kind of Different as Me (2017), and Status Update (2018). Her debut EP, Olivia, was released on Hollywood Records on July 15, 2016.