Gustaf von Paykull

Gustav von Paykull (21 August 1757 – 28 January 1826) was a Swedish friherre (circa baron) and Marshal of the Court, ornithologist and entomologist.

He was a member of the Royal Swedish Academy from 1791 and a founder of the natural history museum (Naturhistoriska Riksmuseet) in , through his 1819 donation of his extensive zoological collections to the academy (now in the Swedish Museum of Natural History). He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1804.

His best-known publications are: