Sweet Valley High is a series of young adult novels attributed to American author Francine Pascal, who presided over a team of ghostwriters to produce the series.[1][2] The books chronicle the lives of identical twins Jessica and Elizabeth Wakefield, who live in the fictional Sweet Valley, California, a suburb near Los Angeles. The twins and their friends attend Sweet Valley High.

The series began in 1983, and concluded twenty years later after the publication of 181 books. The books are generally classified as young adult or children's fiction and belong mostly to the genre of soap opera, romance novel or fantasy-adventure.[3] The series quickly gained popularity and spawned several spin-off series, including Sweet Valley Senior Year and Sweet Valley University, as well as a television adaptation. In July 2017, a film adaptation was also announced.

The novels Sweet Valley Confidential and The Sweet Life, which follow the characters as adults, were published in 2011 and 2012.