Josiah Terry Everest (October 5, 1800, in Addison, Vermont – September 1, 1873) was an American lawyer and politician active in New York.
He served on the New York State Assembly as the representative for Clinton County.
On June 3, 1821, he married Sarah ("Sallie") Sibley (1806–1883), and they had eleven children.
He was a Whig member of the New York State Assembly (Clinton Co.) in 1855.
He was an Inspector of State Prisons from 1859 to 1861, elected on the Republican ticket in 1858.