Jennifer Joanna Aniston (born February 11, 1969) is an American actress and producer. She rose to international fame for her role as Rachel Green on the television sitcom Friends from 1994 to 2004, for which she earned Primetime Emmy, Golden Globe, and Screen Actors Guild awards. Since her career progressed in the 1990s, she has become one of the world's highest-paid actresses.

The daughter of actors John Aniston and Nancy Dow, she began working as an actress at an early age with an uncredited role in the 1988 film Mac and Me; her first major film role came in the 1993 horror comedy Leprechaun. She has since starred in a string of successful comedy films such as Office Space (1999), Bruce Almighty (2003), The Break-Up (2006), Marley & Me (2008), Just Go with It (2011), Horrible Bosses (2011), We're the Millers (2013), Dumplin' (2018), Murder Mystery (2019) and its sequel Murder Mystery 2 (2023). Aniston also starred in the acclaimed independent films The Good Girl (2002), Friends with Money (2006), and Cake (2014). She returned to television in 2019, producing and starring in the Apple TV+ drama series The Morning Show, for which she received a Screen Actors Guild Award.

Aniston has been included in numerous magazines' lists of the world's most beautiful women. Her net worth is estimated as $300 million, and her box office gross is over $1.6 billion worldwide. She is the recipient of a star on the Hollywood Walk of Fame and is the co-founder of the production company Echo Films, established in 2008. She has been married twice: first to actor Brad Pitt, to whom she was married for five years, and later to actor Justin Theroux, whom she married in 2015 and separated from in 2017.