Beverly Hills, 90210 is an American drama series that aired from October 4, 1990 to May 17, 2000 on Fox in the United States, and subsequently on various networks around the world. It is the first series in the Beverly Hills, 90210 franchise. The show followed the lives of a group of teenagers living in the upscale, star-studded community of Beverly Hills, California and attending the fictitious West Beverly High School and, subsequently, the fictitious California University after graduation. The show was created by Darren Star and produced by Paul Robinson. The "90210" in the title refers to the city's ZIP code.

The original premise of the show was based on the adjustment and culture shock that twins Brandon (played by Jason Priestley) and Brenda Walsh (played by Shannen Doherty) experienced when they and their parents, Jim (played by James Eckhouse) and Cindy (played by Carol Potter) moved from Minneapolis, Minnesota to Beverly Hills. In addition to chronicling the friendships and romantic relationships of a group of close-knit teenagers, the show also addressed numerous topical issues including date rape, alcoholism, domestic violence, gay rights, drug abuse, teenage suicide, AIDS, teenage pregnancy, and abortion.

The series gained popularity during the summer of 1991, when Fox aired a special "summer season" of the show while most other series were in reruns. The series became one of Fox's top shows when it began its next season that fall. Viewership increased dramatically and the cast members, particularly Jason Priestley and Luke Perry, became teen idols, while the series would make actresses Shannen Doherty, Jennie Garth and Tori Spelling household names in the US. The show also had many cast changes, though Garth, Spelling, Ian Ziering and Brian Austin Green were regulars during its entire run.