This article is about the 19th century U.S. congressman from New York. For the 20th century state legislator from Wisconsin, see John Morgan (Wisconsin politician). For others with a similar name, see John Morgan.
John Jordan Morgan (1770 – July 29, 1849) was an American politician from New York. From 1821 to 1825, and again briefly from late 1834 to early 1835, he served in the U.S. House of Representatives.
He was a member from New York County of the New York State Assembly in 1819. In 1826, Morgan's adopted daughter Catherine (a niece of his first wife) married John Adams Dix who was then hired by Morgan to look after his land holdings in Cooperstown. Dix later became a US Senator, Union Army General and Governor of New York.