2023 disestablishments in South Korea

Momoland (, stylized in all caps) is a South Korean girl group formed by MLD Entertainment (formerly known as Duble Kick Company) through the 2016 reality show Finding Momoland. The show's winners Hyebin, Yeonwoo, Jane, Nayun, JooE, Ahin, and Nancy served as the original members. Their debut mini album Welcome to Momoland was released on November 10, 2016. In 2017, Momoland became a nine-member group when Daisy and Taeha joined as members. In 2019, Taeha and Yeonwoo left the group, while Daisy departed in 2020. The group disbanded on February 14, 2023.

South Korean girl group

TO1 (; formerly known as TOO) (stylized in all caps) was a South Korean boy band formed by Mnet's 2019 reality show To Be World Klass. The group debuted on April 1, 2020, with their first mini album Reason For Being: Benevolence with "Magnolia" serving as the title track.

GWSN (), also known as Girls in the Park, was a South Korean girl group formed in 2018 by Kiwi Pop (now known as The Wave Music). The group consisted of seven members: Miya, Seokyoung, Seoryoung, Anne, Minju, Soso, and Lena, and debuted on September 5, 2018 with the title track "Puzzle Moon" from their extended play The Park in the Night Part One.

D1ce (, stylized in all caps; pronounced as "The Once") was a South Korean boy band formed by Dreamcatcher Company. The group consisted of five members: Jo Yong-geun, Kim Hyun-soo, Jung Yoo-jun, Park Woo-dam, and Woo Jin-young. They debuted on August 1, 2019 with the EP Wake Up: Roll the World. The group disbanded on January 20, 2023 following their contract expiration.

High1 () was an ice hockey team based in Seoul, South Korea. Formed in 2004, the team was initially made up of players from the defunct Korean Ice Hockey League who didn't immediately move to Anyang Halla from the Hyundai and Dongwon teams as well as other disbanded teams and players who had returned from military service. Prior to the 2007–08 season, the team was known as Kangwon Land (), named after their owner, Kangwon Land Corporation. Between 2005 and 2019, High1 competed in the Asia League Ice Hockey.

South Korean musical group; boy band

Korean band

South Korean duo

KiZmom () was a South Korean children's and family channel owned by SBS Medianet, a division of SBS Media Holdings.