Kaspar Fürstenau (26 February 1772 – 11 May 1819) was a German flautist and composer.
He wrote about sixty compositions for his instrument among rondos, fantasias, suites and concertos.
[1] Together with his son Anton Bernhard Fürstenau he traveled extensively around Europe always with acclaimed success.
After his father's death, his employer, the prince bishop of Münster Maximilian Friedrich von Königsegg-Rothenfels, organized further training for him with the bassoon teacher Bernhard Anton Romberg.
From 1793, Furstenau was again sent by his employer on study trips to the courts of London, Paris and Vienna, to become a member of the court chapel of Augustus, Grand Duke of Oldenburg, who was for some time his teacher from 1794.