James Baird Weaver (June 12, 1833 – February 6, 1912) was a United States politician and member of the United States House of Representatives, representing Iowa as a member of the Greenback Party. He ran for President two times on third party tickets in the late 19th century. An opponent of the gold standard and national banks, he is most famous as the presidential nominee of the People's Party (commonly known as the "Populists") in the 1892 election.