Mikaela "Mikey" Madison Rosberg (born March 25, 1999) is an American actress. She began her career acting in short films and received recognition for her role as a sullen teenager in the FX comedy series Better Things (2016–2022). Madison then played Manson family member Susan Atkins in Quentin Tarantino's Once Upon a Time in Hollywood (2019) and Amber Freeman in Scream (2022).

For her breakthrough role as the titular stripper in Sean Baker's film Anora (2024), Madison earned several accolades, including the Academy Award and BAFTA Award. She is the first member of Generation Z to win an acting Oscar.