Seventeen (Korean: 세븐틴; RR: Sebeuntin; stylized in all caps or as SVT) is a South Korean boy band formed by Pledis Entertainment. The group consists of thirteen members: S.Coups, Jeonghan, Joshua, Jun, Hoshi, Wonwoo, Woozi, DK, Mingyu, The8, Seungkwan, Vernon, and Dino. They have had a large audience since their debut and grown into an internationally recognized K-pop group with signature music and performances.

The group debuted on May 26, 2015, with the extended play (EP) 17 Carat, which became the longest-charting K-pop album of the year in the US and the only rookie album to appear on Billboard's "10 Best K-Pop Albums of 2015" list. The group's 2023 EPs FML and Seventeenth Heaven both set records for the most pre-ordered album in history, with FML earning the group their first MAMA Award for Album of the Year and becoming the best selling album of the year according to the International Federation of the Phonographic Industry.

Seventeen is considered a "self-producing" idol group, with the members involved in songwriting, music production, and choreographing, among other aspects of their music and performances. They perform as one group and are divided into three units—hip-hop, vocal, and performance—each with a different area of specialization. They have been labeled "Performance Kings", "Theater Kids of K-Pop", and "K-Pop Performance Powerhouse'" by various domestic and international media outlets.