The Headquarters is the location where the hero sets up his or her army in the Suikoden series. While usually a castle, as seen in Suikoden, Suikoden II, Suikoden III and Suikoden V, it may also be a ship, as seen in Suikoden IV or a fortress as seen in Suikoden Tierkreis.
- Castle of Toran (Suikoden)
- North Window Castle (Suikoden II)
- Budehuc Castle (Suikoden III)
- Dauntless (Suikoden IV)
- Ceras Lake Castle (Suikoden V)
- Fortress Ruins (Suikoden Tierkreis)
- Lake Fortress (Genso Suikoden: The Woven Web of a Century)
- All Headquarters in the series are close to or inside of a body of water, on its margin. This is one of the series' strongest thematic links to the novel that inspired it, Water Margin. In the original story, the stronghold was in the middle of Liangshan Marsh, and its natural defenses were among the reasons so many brave outlaws flocked to it.