Frederikke av Württemberg (1699–1781), was a German princess. She was the favorite of the queen of Denmark, Sophie Magdalene of Brandenburg-Kulmbach, and the Abbess of the Danish Protestant convent Vallø stift in 1738–1743.
She was born to Frederick Augustus, Duke of Württemberg-Neuenstadt and Albertine Sophie Esther of Eberstein. Sh never married, and after the death of her father in 1716, she lived with her mother at Gochscheim until her death in 1728. After this, she was for a time lady-in-waiting to Johanna Elisabeth of Baden-Durlach. Frederica were a favorite of the Danish queen, who's favoritism of Germans were disliked, and was awarded by her with her order and the lucrative post of abbess. She was not popular at the Danish royal court, where she was disliked because of her sharp tongue, and were involved in a conflict with the queens sister, Sophie Caroline of Brandenburg-Kulmbach. In 1743, she left Denmark and returned to the castle in Neuenstadt.
She was a Dame of the Ordre de l'Union Parfaite.