Carl Constantin Platen (24 September 1843, Stralsund – 29 June 1899, Barth) was a German physician and zoological collector of birds and butterflies.
After his medical profession in Amoy in the Chinese Empire Carl Constantin Platen worked as a zoological collector.
The yield, which consisted of 728 specimens of 141 bird taxa, gathered on these expeditions was acquired mostly by Platens friend Wilhelm Blasius for the natural history museum in Braunschweig.
A further part was sold to the natural history dealer Wilhelm Schlüter in Saale.
Platen was nearly blind and deaf, when he returned to Germany in 1894 where he lived in Mecklenburg-Western Pomerania until his death in 1899.