Siegfried II

Siegfried II may refer to:


 * Siegfried II, Count of Stade (d. 1037)
 * Siegfried II (archbishop of Mainz) (d. 1230)
 * Siegfried II of Westerburg (d. 1297), archbishop of Cologne
 * Siegfried II of Querfurt (d. 1310), bishop of Hildesheim