Record of Grancrest War (Japanese: グランクレスト戦記, Hepburn: Gurankuresuto Senki) is a Japanese light novel series and tabletop role-playing game written by Ryo Mizuno and illustrated by Miyū.

An anime television series adaptation by A-1 Pictures aired from January 6 to June 23, 2018.

Over time, the two power blocs' rulers decided to arrange the wedding of their heirs to unite and complete the creation of the Great Seal - a symbol of order for the eternal peace.

A spin-off light novel titled Grancrest Adept: Mushoku no Seijo, Soen no Kenshi (グランクレスト・アデプト 無色の聖女、蒼炎の剣士, Gurankuresuto Adepto: Mushoku no Seijo, Soen no Kenshi), written by Ryo Mizuno and Notane Kaki and illustrated by Ayumu Kasuga, was published by Fujimi Shobo on September 20, 2013.

In parallel to the light novel Ryo Mizuno and Shunsaku Yanō developed a tabletop role-playing game called Grancrest RPG.

The anime series is directed by Shinichi Omata (under the pseudonym Mamoru Hatakeyama) at A-1 Pictures and written by WriteWorks, with series creator Ryō Mizuno and Shunsaku Yanō handled the series composition, Hiroshi Yakō designed the characters, Yoshikazu Iwanami handled the sound direction and Yugo Kanno composed the music.

[25] MVM Entertainment acquired the series for release in the United Kingdom and Ireland.