| Frederick Charles | |
| Duke of Württemberg-Winnental | |
| House: | Württemberg |
| Father: | Eberhard III, Duke of Württemberg |
| Mother: | Anna Katharina of Salm-Kyrburg |
| Spouse: | Margravine Eleonore Juliane of Brandenburg-Ansbach |
| Birth Place: | Stuttgart, Duchy of Württemberg |
| Death Place: | Stuttgart, Duchy of Württemberg |
Frederick Charles of Württemberg-Winnental (12 September 1652 - 20 December 1697) was since 1677 Duke of the new-founded line of Württemberg-Winnental and regent of the infant Duke Eberhard Ludwig.
Born on 12 September 1652 at Stuttgart, Frederick Charles was the second son of Eberhard III, Duke of Württemberg and Anna Catharina von Salm-Kyrburg.
On 27 November 1677 he was given the regency over his nephew after the death of his older brother and with that the regency over Württemberg.This ended on 22 January 1693 when Eberhard Ludwig reached the age of majority.Out of recognition he received a large sum of money and was appointed Generalfeldmarschall by the Kaiser.
Frederick Charles fought against the French on the Rhine in the War of the Grand Alliance under Louis William, Margrave of Baden-Baden.On 27 September 1692, an imperial army unit of 4,000 cavalry men under his command was attacked by surprise in their camp in Ötisheim near Mühlacker. They withdrew hastily and lost several hundred men, either killed or captured by the French. The Duke himself was among the prisoners, but was released soon after.
He fell ill in 1696 of syphilis and died the next year in Stuttgart.
Frederick Charles married on 31 October 1682 Margravine Eleonore Juliane of Brandenburg-Ansbach (1663–1724), daughter of Albert II, Margrave of Brandenburg-Ansbach.
They had seven children :