| Romaji: | Ginga Eiyuu Densetsu Gaiden: Rasen Meikyuu |
| Japanese: | 銀河英雄伝説外伝 螺旋迷宮 |
| English: | Legend of the Galactic Heroes Gaiden: Spiral Labyrinth |
| Score: | 77% (1987) |
| Popularity: | 6149 |
| Rank: | 38 |
| Type: | N/A |
| Episodes: | 28 |
| Duration: | 26 min |
| Broadcast: | 24/12/1999 to 27/6/2001 |
| Status: | Finished |
| Source: | Other |
| Studios: | J.C.STAFF, Artland, Magic Bus |
| Season: | Winter |
A prequel to Legend of Galactic Heroes, focusing more on Yang Wen-li; how he became the hero of El Facile and how he handled a couple of assignments he received afterward. Spiral Labyrinth also continues with the background of Reinhard and Kircheis where the first Gaiden left off. A collection of independent short stories taking place prior to the Overture to a New War, some of which are adapted from the novel and some of which are completely original.
| Parent: | Ginga Eiyuu Densetsu Gaiden: Senoku no Hoshi, Senoku no Hikari |
| Alternative: | Ginga Eiyuu Densetsu Gaiden: Ougon no Tsubasa |
| Sequel: | Ginga Eiyuu Densetsu: Waga Yuku wa Hoshi no Taikai |