Thomas Tredwell (February 6, 1743 – December 30, 1831) was an American lawyer and politician from Plattsburgh, New York.

Tredwell was born in Smithtown in the Province of New York on February 6, 1743.

He was admitted to the bar and began practice in Plattsburgh.

He was a member of the New York State Assembly from 1777 to 1783; judge of the court of probate from 1778 to 1787; served in the New York State Senate from 1786 to 1789; surrogate of Suffolk County, New York from 1787 to 1791; and delegate to the State ratification convention in 1788.

Tredwell was elected to the 2nd United States Congress as an Anti-Administration man to fill the vacancy caused by the death of James Townsend, after previously being a candidate for the same seat in 1790[2], and was re-elected to the 3rd United States Congress, serving from May 1791 to March 3, 1795.