The music for the 2023 video game Final Fantasy XVI, developed and published by Square Enix as the sixteenth mainline entry in the Final Fantasy series, was principally composed by Masayoshi Soken, with additional tracks by Takafumi Imamura, Daiki Ishikawa, Saya Yasaki, and Justin Frieden. The composers had previously worked on the soundtracks for Final Fantasy XIV and its expansions, developed by many of the same team as Final Fantasy XVI. The music was written principally in a classical style to match the game's dark tone, making recurring series themes such as the "Prelude" and "Chocobo" themes difficult to incorporate. Some songs, including the victory theme, included lyrics in Ancient Greek. The ending themes were "Tsuki Wo Miteita – Moongazing", written and performed by Kenshi Yonezu, and "My Star", written by Soken and performed by Amanda Achen.
"Tsuki Wo Miteita – Moongazing" was released as a digital single on June 26, 2023 alongside the game. The music album, Final Fantasy XVI Original Soundtrack, was released physically and digitally by Square Enix's music label on July 19. The physical versions were a standard seven-disc edition and an eight disc "Ultimate Edition". The album and single reached high positions on sales charts, and the music overall had seen positive reviews from music and video game journalists.