The discography of the South Korean singer Key consists of two studio albums (both of which were re-released under a different title), three extended plays, one soundtrack album, fourteen singles (including three as featured artist) and three appearances on soundtracks.

Key made his debut as a solo artist on November 6, 2018, with the release of the single "Forever Yours".

[4] On March 4, Key released the repackaged album I Wanna Be.

[5] On September 27, 2021, Key released his first Korean extended play Bad Love.

[8] Key released his second Korean extended play, Good & Great, on September 11, 2023.