Jedediah Morgan (March 14, 1774 – December 10, 1826) was an American farmer and politician from New York.
In 1792, he removed with his father to a farm about 3 miles south of the Village of Aurora, NY.
On January 26, 1812, he married Harriet Steele, and they had eight children, among them the pioneering anthropologist, social theorist and state legislator, Lewis H. Morgan (1818–1881).
In 1824, Morgan was one of only three State Senators who voted against the removal of DeWitt Clinton from the Erie Canal Commission.
In 1826, he resigned his seat in the Senate due to ill health, and died soon afterwards, at Aurora, Cayuga County, New York.