William II of Holland
| William | |
|---|---|
Effigy of William on his seal | |
| King of Germany (formally King of the Romans) | |
| Reign | 3 October 1247 – 28 January 1256 |
| Coronation | 1 November 1248, Aachen |
| Predecessor | Conrad IV, Henry IV |
| Successor | Richard |
| Born | February 1227 |
| Died | 28 January 1256 (aged 28) |
| Spouse | Elisabeth of Brunswick-Lüneburg |
| Issue | Floris V, Count of Holland |
| House | Holland (Gerulfings) |
| Father | Floris IV, Count of Holland |
| Mother | Matilda of Brabant |
William II (February 1227 – 28 January 1256) was the Count of Holland and Zeeland from 1234 until his death. He was elected anti-king of Germany in 1248 and ruled as sole king from 1254 onwards.