- Source: N.SSign discography
South Korean boy group N.SSign has released three extended plays, two reissue extended plays, one single album, one live album, eleven singles, and two promotional singles.
Prior to their debut, N.SSign released the digital albums Woo Woo and Salty, and its reissue Monologue. They made their official debut in 2023 with the extended play Birth of Cosmo, led by the single "Wormhole". Birth of Cosmo debuted at number 3 on the Circle Album Chart, and sold approximately 220,000 copies by the end of the year.
N.SSign made their debut in Japan later that same year, with the single "New Star". "New Star" debuted at number 3 on the Oricon Singles Chart, and sold approximately 30,000 copies.