Robin Tunney (born June 19, 1972) is an American actress. Tunney made her film debut in the comedy Encino Man (1992) and rose to prominence for her lead roles in the cult films Empire Records (1995) and The Craft (1996). Her performance in Niagara, Niagara (1997) earned her critical acclaim and the Volpi Cup for Best Actress. She starred in End of Days (1999), Supernova, and Vertical Limit (both 2000). Tunney gained critical recognition for her role as Veronica Donovan in the series Prison Break (2005–2006) and Teresa Lisbon in the television series The Mentalist (2008–2015).

Tunney was highly praised for her portrayal of a sexual assault victim in the independent drama Open Window (2006). Her subsequent film roles in the 2000s include Cherish and The Secret Lives of Dentists (both 2002), The In-Laws (2003), Hollywoodland (2006), August and The Burning Plain (both 2008), and Passenger Side (2009). She headlined the thriller Looking Glass (2018) and starred in the short-lived legal drama series The Fix (2019).