John Ingersoll Gilbert (October 11, 1837 Pittsford, Rutland County, Vermont – December 19, 1904) was an American politician from New York.
He attended Castleton Seminary, North Granville Academy, and Barre Academy, and graduated from the University of Vermont in 1859. Then he taught school. He was Principal of the Royalton Academy for two years, and of the Franklin Academy in Malone for six years. He also studied law, was admitted to the bar, and practiced in Malone.
Gilbert was a member of the New York State Assembly (Franklin Co.) in 1876, 1877 and 1878.
He was a member of the New York State Senate (20th D.) in 1884 and 1885. He was a delegate to the 1884 Republican National Convention.
At the New York state election, 1889 he ran for Secretary of State of New York, but was defeated by Democrat Frank Rice. Gilbert was a delegate to the New York State Constitutional Convention of 1894.