Lily Rabe (born June 29, 1982) is an American actress. She is best known for her multiple roles on the FX anthology horror series American Horror Story (2011–2021). For her performance as Portia in the Broadway production of The Merchant of Venice, she received a nomination for the Tony Award for Best Actress in a Play.

Her film credits include What Just Happened (2008), All Good Things (2010), Pawn Sacrifice(2014), Miss Stevens (2016), Golden Exits (2017), Vice (2018), Fractured (2019), and The Tender Bar (2021). On television, she appeared in the series The Whispers (2015), The Undoing (2020), The Underground Railroad (2021), and The First Lady (2022).