John Coit Spooner (January 6, 1843 – June 11, 1919) was a politician and lawyer from Wisconsin.
He served in the United States Senate from 1885 to 1891 and from 1897 to 1907.
A Republican, by the 1890s, he was one of the "Big Four" key Republicans who largely controlled the major decisions of the Senate, along with Orville H.