The discography of South Korean girl group Loona consists of one reissue, five extended plays (EPs), and twelve single albums.

From October 2016 to March 2018, the group's label, Blockberry Creative, released individual single albums for each Loona member as part of an 18-month pre-debut project.

The EP peaked at number two on South Korea's Gaon Album Chart and was later reissued as [X X] on February 19, 2019, with the lead single "Butterfly".

The group's second extended play, [#], arrived on February 5, 2020, with the lead single "So What".

It became their fastest and best selling project to date and earned the group their first ever entry on the Gaon Digital Chart.