Crest of the Stars (Japanese: 星界の紋章, Hepburn: Seikai no Monshō) is a three-volume space opera science fiction novel written by Hiroyuki Morioka with cover illustrations by Toshihiro Ono.

Beginning in 1999, the novels were adapted into anime and manga series, the first of which ran for 13 episodes on WOWOW.

Young Jinto is sent off to school in planet Delktou to learn the ways of Abh nobility and the story of Crest of the Stars picks up as he meets the young Abh princess, Lafiel who as a pilot trainee has been assigned to escort him to the patrol ship Gothlauth, a.k.a.

Soon, they find themselves unready participants in the incident that would ignite the war between the Abh Empire and the Four Nations Alliance of Humankind — an anti-Abh alliance of the democratic nations of the United Mankind, the Federation of Hania, the Republic of Greater Alcont, and the People's Sovereign Union of Planets.

The series is notable for Morioka's creation of an entire language, Baronh, and an accompanying alphabet, Ath, used by the Abh.

Radio drama adaptation was broadcast on FM Osaka, and has been released as CDs in three volumes.

The first chapter of a new web manga adaptation of Crest of the Stars by Kōichirō Yonemura[20] was published by Flex Comix in volume five of Nico Nico FlexComix Next digital magazine released on May 8, 2012[21] and on FlexComix Next site on May 22;[22] the manga was transferred to Comic Meteor on September 5.

Roughly a year after the anime finished airing, on May 25, 2000 Bandai Visual released a video game adaptation for the PlayStation.