Morfydd Clark (Welsh pronunciation: [ˈmɔrvɪð]; born 17 March 1989) is a Welsh actress. She is best known for playing Galadriel in the Amazon Prime Video series The Lord of the Rings: The Rings of Power (2022–present). She received several accolades for her performance in the film Saint Maud (2019), including a BAFTA Cymru as well as BIFA and BAFTA Rising Star Award nominations.

Clark's other films include a leading role in the folk-horror film  Starve Acre (2023) and supporting credits in Love & Friendship (2016), Interlude in Prague (2017), The Personal History of David Copperfield (2019), and Ophelia in Hamlet (2025). Also on television, she played Mina Harker in Dracula (2020), Sister Clara in His Dark Materials (2019), and Bridget Conway in Murder is Easy (2023).