Heinrich Emanuel Grabowski; also Henryk Grabowski (July 11, 1792 - October 1, 1842) was a German botanist and pharmacist of Polish heritage who was a native of Leobschütz (today known as Glubczyce, Poland).
He studied pharmacy as an apprenctice in Breslau (Wrocław), and from 1824 until 1840 was manager of his own pharmacy in Oppeln (Opole). He is remembered for his investigations of Silesian flora, and also his studies of fossil flora in the Oppeln region of Silesia (Opole Silesia). The botanical species Rubus grabowskii is named after him.
With German botanist Christian Friedrich Heinrich Wimmer (1803-1868), he published three treatises on Silesian flora. (1827-29)