Sandra Annette Bullock (; born July 26, 1964) is an American actress and producer. She has received various awards and nominations, including an Academy Award and a Golden Globe Award, She was the world's highest-paid actress in 2010 and 2014. In 2010, she was named one of Time's 100 most influential people in the world.

After making her acting debut with a minor role in the thriller Hangmen (1987), Bullock received early attention for her supporting role in the action film Demolition Man (1993). Her breakthrough in the action thriller Speed (1994) led to leading roles in the romantic comedy While You Were Sleeping (1995), and the dramas A Time to Kill (1996) and Hope Floats (1998). She achieved further success in the following decades with the comedies Miss Congeniality (2000), Two Weeks Notice (2002), The Proposal (2009), The Heat (2013), Ocean's 8 (2018), and The Lost City (2022); the dramas Crash (2004) and The Unforgivable (2021); and the thrillers Premonition (2007) and Bird Box (2018). For her portrayal of Leigh Anne Tuohy in the biographical drama The Blind Side (2009), Bullock won the Academy Award for Best Actress. She was nominated for the same award for playing an astronaut stranded in space in the science fiction thriller Gravity (2013), which is her highest-grossing live-action film.

In addition to acting, Bullock is the founder of the production company Fortis Films. She has produced some of the films in which she has starred, including Miss Congeniality 2: Armed and Fabulous (2005) and All About Steve (2009), and served as an executive producer on the ABC sitcom George Lopez (2002–2007), on which she made numerous appearances. Dubbed "America's sweetheart" by the media, Bullock was also named the Most Beautiful Woman by People magazine in 2015.