Diane Keaton (née Hall; January 5, 1946 – October 11, 2025) was an American actress. She was known for her leading film roles and distinctive fashion style. She collaborated frequently with Woody Allen appearing in eight of his films. Over a career spanning more than five decades, she received numerous accolades, including an Academy Award, a BAFTA Award, and two Golden Globe Awards, along with nominations for two Emmy Awards and a Tony Award. She was honored at the Film at Lincoln Center Gala Tribute in 2007 and the AFI Life Achievement Award in 2017.

Keaton's career began on stage when she appeared in the original 1968 Broadway production of the musical Hair. The next year she was nominated for a Tony Award for Best Featured Actress in a Play for her performance in Woody Allen's comic play Play It Again, Sam. She then made her screen debut in a small role in Lovers and Other Strangers (1970), before rising to prominence with her first major film role as Kay Adams in Francis Ford Coppola's The Godfather (1972), a role she reprised in its sequels Part II (1974) and Part III (1990). She frequently collaborated with Allen beginning with the film adaptation of Play It Again, Sam (1972). Her next two films with him, Sleeper (1973) and Love and Death (1975), established her as a comic actress, while her fourth, Annie Hall (1977), won her the Academy Award for Best Actress.

Keaton was further Oscar-nominated for her roles as activist Louise Bryant in Reds (1981), a leukemia patient in Marvin's Room (1996), and a dramatist in Something's Gotta Give (2003). She was known for her roles in dramatic films such as Looking for Mr. Goodbar (1977), Interiors (1978), and Crimes of the Heart (1986), as well as comedic roles in Manhattan (1979), Baby Boom (1987), Father of the Bride (1991), its 1995 sequel, Manhattan Murder Mystery (1993), The First Wives Club (1996), The Family Stone (2005), Finding Dory (2016), and Book Club (2018).