约瑟芬·戴克，Josephine Decker (born April 2, 1981) is an American actor, filmmaker, and performance artist. She's best known for directing her first feature film, the experimental psychological thriller Butter on the Latch (2013), the experimental erotic thriller Thou Wast Mild and Lovely (2014), and her third feature film, Madeline's Madeline (2018).