Rudolf Kobert (3 January 1854 – 27 December 1918) was a German pharmacologist and toxicologist born in Bitterfeld.
One of his students was Peter Hermann Stillmark who was the founder of lectinology with the publication of his thesis about ricin.
Due to "Russification" of the university, Kobert left Dorpat in 1896, subsequently becoming director of the Brehmerschen Heilanstalten (a sanatorium founded decades earlier by Hermann Brehmer) in Gorbersdorf.
In 1899 he was appointed to the chair of pharmacology, pharmacognosy, chemistry and physiological history of medicine at the University of Rostock, a position he kept until his death.
Kobert's work largely involved investigations of ergot alkaloids, scopolamine, saponins and various plant and animal poisons.