 |
| William VI | |
|---|---|
 | |
| Landgrave of Hesse-Kassel | |
| Reign | 21 September 1637 – 16 July 1663 |
| Predecessor | William V |
| Successor | William VII |
| Born | 23 May 1629 Kassel |
| Died | 16 July 1663 (aged 34) Haina |
| Spouse | |
| Issue | Charlotte Amelie, Queen of Denmark William VII, Landgrave of Hesse-Kassel Luise Charles I, Landgrave of Hesse-Kassel Philip, Landgrave of Hesse-Philippsthal Georg Elisabeth Henriëtte, Electoral Princess of Brandenburg |
| House | Hesse-Kassel |
| Father | William V, Landgrave of Hesse-Kassel |
| Mother | Amalie Elisabeth von Hanau-Münzenberg |
| Religion | Calvinism |
Wilhelm VI, Landgrave of Hesse-Kassel (23 May 1629 – 16 July 1663), known as William the Just, was Landgrave of Hesse-Kassel from 1637 to 1663.