John Long (1785–1857) was a North Carolina politician who served four terms (1821–1829) in the U.S. House of Representatives.
Long also served one term (1811–12) in the North Carolina House of Commons and one term (1814–15) in the North Carolina Senate.
John Long was born in Loudoun County, Virginia on February 26, 1785. He married Sabra Shepard Ramsey on May 6, 1807, in Cumberland County, North Carolina. Long died on August 11, 1857.