What is the name of the prequel spin-off series to The Big Bang Theory?

The prequel spin-off series to The Big Bang Theory is Young Sheldon.

The sitcom follows Sheldon Cooper as a gifted child growing up in Medford, Texas, during the late 1980s and mid-1990s. Iain Armitage plays young Sheldon, while Jim Parsons—the adult Sheldon in The Big Bang Theory—serves as narrator and executive producer.

Created by Chuck Lorre and Steven Molaro, Young Sheldon began as an idea from Parsons and premiered on CBS in September 2017. Its single-camera family-comedy style differs from the original series’ multi-camera format and studio-audience presentation. The story focuses more heavily on Sheldon’s family, including his mother Mary, father George, twin sister Missy, older brother Georgie, and grandmother Meemaw.

A common mix-up is confusing Young Sheldon with Georgie & Mandy’s First Marriage, another franchise spin-off. Young Sheldon is the direct prequel centered on Sheldon’s childhood; Georgie & Mandy’s First Marriage follows his older brother after the earlier series. Young Sheldon concluded with its seventh season in May 2024.