The Dulcken family were Flemish harpsichord makers of German origin. Joannes Daniel Dulcken (21 April 1706 – 11 April 1757) was born in , the son of Georg Ludwig Dulcken (died Wingeshausen, before 1752). In 1736 he was in Maastricht, but by 1738 he had moved with his wife Susanna Maria Knopffell and their son to Antwerp where they became members of the Reformed church. He became an alderman in 1744, and lived in . He travelled to England in 1750 to sell two of his harpsichords. His will left all his harpsichord-making material to his son Joannes Dulcken; he died in Antwerp. He left a good reputation behind: Charles Burney claimed that, after the Ruckers family, 'the harpsichord-maker of the greatest eminence … was J. D. Dulcken'.