Carl Gustaf Osbeck, Swedish surgeon and naturalist, was the son of the clergyman and naturalist Pehr Osbeck* and his wife Susanna Dahlberg. Carl studied at the University of Lund from 1775 to 1789, qualifying as a surgeon, and became chief surgeon in 1793. He later became assessor of the Royal Collegium Medicum in Stockholm. He is the same person as the author Charles Gustave Osbeck (1766-1841), listed in the National Union Catalogue, who wrote a pamphlet in 1811 in which he described his method for treating venereal disease. It was published in Stockholm in both Swedish and French (14 pp). He is probably also the author Carl Gustaf Osbeck (no dates) who published a pamphlet in Swedish on combating rats (Uppsala, 1829, 8 pp).
In 1797-1798, and again in 1799-1800, Osbeck sailed to the East as surgeon on the Swedish East India Company's ship Gustaf Adolph and collected plants and animals in East India, China, Sumatra, and the Cape. During the second journey the ship remained in Saldanha Bay for repairs from May 1799 to March 1800, during which time Osbeck collected in several places, including Malgas and Marcus Islands in the bay. Several hundred of his plant specimens are housed in the Swedish Museum of Natural History in Stockholm.
Osbeck was married to Christina Aulin, with whom he had two sons and a daughter.