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. This was followed by a second, ongoing novel series, Banner of the Stars (a.k.a. Seikai no Senki, currently six volumes) and a series of books collecting short stories set in the same universe known as Fragments of the Stars (星界の断章, Seikai no Danshō).

Beginning in 1999, the novels were adapted into anime and manga series, the first of which ran for 13 episodes on WOWOW. A recap movie, Crest of the Stars Special Edition, was also released in 2000.