Russel Farnham (1784 – October 23, 1832) was an American frontiersman, explorer, and fur trader. An agent of John Jacob Astor's American Fur Company, he oversaw fur trading in the Great Lakes region throughout the 1810s and 1820s. A member of the Pacific Fur Company headed by Wilson P. Hunt during 1810–1812, he is also the first American to semi-circumnavigate the world traveling by foot from Fort Astoria (now Astoria, Oregon) to St. Petersburg, Russia, to New York City.