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 with leading roles in the cult films Empire Records (1995) and The Craft (1996). Her performance in Niagara, Niagara (1997) won her acclaim and the Volpi Cup for Best Actress. She had leading roles in the films End of Days (1999), Supernova and Vertical Limit (both 2000). Tunney earned critical acclaim for playing Veronica Donovan on Prison Break (2005–2006) and Teresa Lisbon on the television series The Mentalist (2008–2015).

Tunney was praised for her portrayal of a victim of sexual assault in the independent drama Open Window (2006). Her subsequent film roles across 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 led the thriller film Looking Glass (2018), and starred in the short-lived legal drama series The Fix (2019).