Reuel Williams (June 2, 1783 – July 25, 1862) was an American lawyer and politician who served one term as a U.S.

[citation needed] In 1837, he was elected as a Democrat to the United States Senate to fill the vacancy caused by the resignation of Ether Shepley and served from March 4, 1837, to February 15, 1843, when he resigned.

[2] Their son, Joseph H. Williams, also a politician, was elected Governor of Maine.

Their daughter, Jane E. Williams, married Unitarian minister and author Sylvester Judd on August 31, 1841; they had three children.

Another daughter, Helen A. Williams, married John Taylor Gilman originally of Exeter, New Hampshire.