|Great Sword (SCIII)|
|Weapon type||Iron Sword|
|Great Sword (SCIV)|
|Great Sword (SCV)|
Great Sword is one of Siegfried's weapons in Soulcalibur IV. It, along with Soul Calibur, is available by default. It has Alignment equipped by default as a skill, which increases or decreases the player's stats depending on the opponent's alignment. Its appearance is similar to Edge Master's No Name Zweihänder in Soulcalibur IV, but it has the appearance of a nodachi in Soulcalibur: Broken Destiny and in Soulcalibur V.
- Great Sword's first look was its appearance used in Soul Calibur III, which has a similar appearance to the Edge Master weapon for Siegfried's discipline in Soulcalibur, as well as Siegfried's The Ancient weapon, but of a different tint. However, in Broken Destiny, its appearance was changed to that of a Japanese Ōdachi, and it also gets its name changed from グレートソード (Great Sword) to 大太刀 (Ōdachi). This appearance and name change is retained in Soul Calibur V as well.