James J. Creamer (1861 – August 25, 1918) was an American labor unionist and politician.
[1][2] In 1890, Creamer succeeded as grand master machinist, leader of the IAM.
He served as leader until 1892, when he stood down, due to the low pay and extensive travel.
Creamer became editor of the Machinists' Monthly Journal, serving until 1895, when he became a gas inspector for Richmond.
He was a supporter of the Democratic Party, and in 1911, he was elected to represent Richmond in the Virginia House of Delegates, with the unanimous backing of the city's Central Trades Council.