Peter Jordan (2 February 1751 – 6 July 1827) was a professor of natural history and later agronomy at the University of Vienna.
Assistance from a local pastor led to his attending school and he was later able to join the University of Göttingen to study medicine.
He attended the lectures of Johann Friedrich Blumenbach and Georg Christoph Lichtenberg.
In 1806, Emperor Francis II made him director of the lands of Vösendorf and Laxenburg and put him in charge of agriculture in the region.
His students included the Hungarian János Nagyváthy and Leopold Trautmann (1766–1825) who both published many of his ideas in their works.