Jennifer Grey (born March 26, 1960) is an American actress. She made her acting debut with the film Reckless (1984), and had her breakthrough with the teen comedy film Ferris Bueller's Day Off (1986). She earned worldwide fame starring as Frances "Baby" Houseman in the romantic drama film Dirty Dancing (1987), which earned her a Golden Globe Award nomination. Her other feature films include Red Dawn (1984), The Cotton Club (1984), Bloodhounds of Broadway (1989), Bounce (2000), Redbelt (2008), The Wind Rises (2013), In Your Eyes (2014), Bittersweet Symphony (2019), and A Real Pain (2024).

Grey's early television work includes the made-for-TV films Murder in Mississippi (1990), Criminal Justice (1990), and If the Shoe Fits as Kelly Carter / Prudence (1990). She starred as herself in the series It's Like, You Know... (1999–2001), won season eleven of the dancing competition series Dancing with the Stars (2010) and starred as Judy Meyers in the Amazon Prime Video comedy Red Oaks (2014–2017). Her voice work in film and television includes the 2018 film Duck Duck Goose and the 2008–2014 animated television series Phineas and Ferb.

Jennifer Grey was born on March 26, 1960, in New York City to former actress/singer Jo Wilder (née Brower) and stage and Academy Award-winning screen actor Joel Grey. Her paternal grandfather was comedian and musician Mickey Katz. Grey's parents both came from Jewish families.

Grey attended the Dalton School, a private school in Manhattan where she studied dance and acting, and where she met her best friend, actress Tracy Pollan. After graduating in 1978, Grey enrolled at Manhattan's Neighborhood Playhouse School of the Theatre for two years of training as an actress. While waiting for roles, she supported herself waitressing.

Grey made her commercial debut at age 19 in an ad for Dr Pepper, then made her film debut in a small role in Reckless (1984), followed by another small role, in Francis Ford Coppola's The Cotton Club in 1984. That year she starred in the war film Red Dawn, then went on to the 1985 John Badham project American Flyers.

In 1986 she played the role of jealous sister Jeannie Bueller in the John Hughes comedy film Ferris Bueller's Day Off, opposite Matthew Broderick. The film was commercially successful and received a positive critical reception.

The following year she reunited with Patrick Swayze, her Red Dawn co-star, to play Frances "Baby" Houseman in Dirty Dancing, a coming-of-age love story: spending the summer at a Catskills resort with her family, Frances "Baby" Houseman falls in love with the resort's dance instructor, Johnny Castle. The low-budget film was a surprise hit, was the first film to sell one million copies on video, and is considered a classic. She was paid $50,000 for her role, which came to define her career, and she was nominated for a Golden Globe for Best Actress for the role.

Grey's sole Broadway theatre credit is her 1993 appearance in The Twilight of the Golds.