| Sizzo | |
|---|---|
| Prince of Schwarzburg | |
 | |
| Born | 3 June 1860 Rudolstadt, Schwarzburg-Rudolstadt |
| Died | 24 March 1926 (aged 65) Großharthau, Weimar Republic |
| Spouse | Princess Alexandra of Anhalt |
| Issue | Marie Antoinette, Countess of Solms Wildenfels Princess Irene Friedrich Günther, Prince of Schwarzburg |
| House | House of Schwarzburg |
| Father | Friedrich Günther, Prince of Schwarzburg-Rudolstadt |
| Mother | Countess Helene of Raina |
Günther Sizzo, Prince of Schwarzburg[needs IPA] (3 June 1860 – 24 March 1926) was the head of the House of Schwarzburg and pretender to the principalities of Schwarzburg-Rudolstadt and Schwarzburg-Sondershausen.