Christine Ann Lahti (born April 4, 1950) is an American actress and filmmaker. She was nominated for the Academy Award for Best Supporting Actress for the 1984 film Swing Shift. Her other film roles include ...And Justice for All (1979), Housekeeping (1987), Running on Empty (1988), and Leaving Normal (1992), and The Fear Inside. For her directorial debut with the 1995 short film Lieberman in Love, she won the Academy Award for Best Live Action Short Film.

Lahti made her Broadway debut in 1980 as a replacement in Loose Ends, and went on to star in the Broadway productions of Present Laughter (1982) and The Heidi Chronicles (1989). An eight-time Golden Globe nominee and six-time Emmy Award nominee, she won a Golden Globe for the 1989 TV movie No Place Like Home, and won a Golden Globe and an Emmy in 1998 for her role as Kate Austin in the CBS series Chicago Hope (1995–99). She returned to Broadway in 2009 to star in God of Carnage. She also had a recurring role as Sonya Paxton in the NBC series Law and Order: Special Victims Unit (2009–11), as Doris McGarrett in the CBS series Hawaii Five-0 (2012–19), and Laurel Hitchin in NBC's The Blacklist (2015–17).