| Frederick Bernard, Count Palatine of Gelnhausen | |
| Noble Family: | House of Wittelsbach |
| Father: | John Charles, Count Palatine of Gelnhausen |
| Mother: | Esther Maria of Witzleben-Elgersburg |
| Spouse: | Ernestine Louise of Waldeck-Pyrmont |
| Birth Date: | 28 May 1697 |
| Birth Place: | Gelnhausen |
| Death Place: | Gelnhausen |
Frederick Bernard, Count Palatine of Gelnhausen (28 May 1697 in Gelnhausen - 5 August 1739, ibid.) was Count Palatine and Duke of Birkenfeld-Gelnhausen.
Frederick Bernard was the eldest son of the Duke and Count Palatine John Charles of Gelnhausen (1638-1704) from his second marriage, Esther Maria (1665-1725), the daughter of Baron George Frederick of Witzleben-Elgersburg.
In 1704, he succeeded his father as Count Palatine of Birkenfeld-Gelnhausen. He served in the French army as a colonel of the Royal Alsatian regiment. He was a knight of the Order of Saint Hubert. A treaty of 1736 with Caroline, the regent of Zweibrücken, granted Frederick Bernard an annual allowance of .[1]
Frederick Bernard died in 1739 without a male heir.[2] Gelnhause was inherited by his younger brother John.
Frederick Bernard married on 30 May 1737 in Arolsen to Ernestine Louise (1705-1782), the daughter of prince Frederick Anton Ulrich of Waldeck and Pyrmont. Her mother was Frederick Bernard's cousin Louise of Palatinate-Birkenfeld-Bischweiler. Frederick Bernard and Ernestine Louise had two daughters: