Felicity Rose Hadley Jones (born 17 October 1983) is an English actress. She began her professional acting career as a child, appearing in The Treasure Seekers (1996) at age 12. She went on to play Ethel Hallow for one series of the television series The Worst Witch (1998). In 2008, she appeared in the Donmar Warehouse production of The Chalk Garden.

Since 2006, Jones has appeared in the films Northanger Abbey (2007), Brideshead Revisited (2008), Chéri (2009), The Tempest (2010), The Amazing Spider-Man 2(2014), and True Story (2015). She received praise for her performances in the romantic drama Like Crazy (2011) and the biopic The Theory of Everything (2014). Her portrayal of Jane Hawking in the latter earned her nominations for the BAFTA and the Academy Award for Best Actress.