Jennifer Lynn Connelly (born December 12, 1970) is an American actress who began her career as a child model. She appeared in magazine, newspaper and television advertising, before she made her movie acting debut in the 1984 crime film Once Upon a Time in America. Connelly continued modeling and acting, starring in films such as the 1985 horror film Phenomena (her first leading role), the 1986 musical fantasy film Labyrinth (opposite David Bowie) and the 1991 films Career Opportunities and The Rocketeer. She gained critical acclaim for her work in the 1998 science fiction film Dark City and for her portrayal of Marion Silver in the 2000 drama Requiem for a Dream.

In 2002, Connelly won an Academy Award, a Golden Globe Award and a BAFTA Award for her supporting role as Alicia Nash in Ron Howard's 2001 biopic drama A Beautiful Mind. Her subsequent credits include the 2003 Marvel superhero film Hulk where she played Bruce Banner's love interest Betty Ross; the 2005 horror film Dark Water; the 2006 drama Blood Diamond; the 2008 science fiction remake The Day the Earth Stood Still; the 2009 romantic comedy He's Just Not That Into You; and the 2009 biopic drama Creation. She re-teamed with Requiem for a Dream director Darren Aronofsky and A Beautiful Mind co-star Russell Crowe for the 2014 biblical epic Noah; was directed by her husband Paul Bettany in the 2014 drama Shelter; and will star in Robert Rodriguez' upcoming cyberpunk action film Alita: Battle Angel.

Connelly was named Amnesty International Ambassador for Human Rights Education in 2005. She has been the face of Balenciaga fashion advertisements, as well as for Revlon cosmetics. In 2012, she was named the first global face of the Shiseido Company. Magazines including Time, Vanity Fair and Esquire, as well as the Los Angeles Times newspaper have included her on their lists of the world's most beautiful women. In the 1992 animated Disney movie Aladdin, Princess Jasmine was modeled after Connelly.