William V, Landgrave of Hesse-Kassel
| William V | |
|---|---|
| Landgrave of Hesse-Kassel | |
| Reign | 17 March 1627 – 21 September 1637 |
| Predecessor | Maurice |
| Successor | William VI |
| Born | 13 February 1602 Kassel, Hesse-Kassel |
| Died | 21 September 1637 (aged 35) Leer, East Frisia |
| Burial | |
| Spouse | |
| Issue |
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| House | Hesse-Kassel |
| Father | Maurice, Landgrave of Hesse-Kassel |
| Mother | Agnes of Solms-Laubach |
| Religion | Calvinism |
William V (German: Wilhelm) (13 February 1602 – 21 September 1637), a member of the House of Hesse, was Landgrave of Hesse-Kassel from 1627 to 1637. Having come to rule in unfavorable circumstances and in the midst of the Thirty Years' War, he continued to suffer losses of territory and wealth.