Count Konstanty Grzegorz Branicki (9 May 1824 – 14 July 1884) was a Polish landowner, collector and naturalist who established a private museum of natural history in Warsaw.
He was born at time when Tsarist Russian intelligence watched over his family and considered them as potential enemies.
Born with a heart condition, he took an interest in natural history and had a great love of travel.
The two Branickis established a private zoological museum in 1887, financing expeditions into Ussuri 1883-1885, to Korea and Japan (1885-1887), and Peru (1881-1902).
Later they paid for collectors including Benedykt Dybowski, Konstanty Jelski, Jan Sztolcman, and others.