Isaac Chapman Bates
United States Senator from Massachusetts
In office January 13, 1841 – March 16, 1845
Preceded by	John Davis
Succeeded by	John Davis
Member of the U.S. House of Representatives from Massachusetts's 8th district
In office March 4, 1827 – March 3, 1835
Preceded by	Samuel Lathrop
Succeeded by	William B. Calhoun
Member of the Massachusetts House of Representatives
In office 1808–1809
Personal details
Born	(1779-01-23)January 23, 1779 Granville, Massachusetts, US
Died	March 16, 1845(1845-03-16) (aged 66) Washington, D.C., US
Political party	Federalist Whig
Alma mater	Yale College
Profession	Law

Isaac Chapman Bates (January 23, 1779 – March 16, 1845) was an American politician from Massachusetts.

He was born in Granville, Massachusetts, and graduated from Yale College in 1802. He practiced law in Northampton, Massachusetts, in 1808.

Political career

Massachusetts House of Representatives

He was a member of the Massachusetts House of Representatives (1808–1809).

United States House of Representatives

Bates was elected to the United States House of Representatives (March 4, 1827 – March 3, 1835), where he was an Anti-Jacksonian. He was chairman of the U.S. House Committee on Military Pensions in the Twenty-first Congress. He declined to be a candidate for renomination in 1834.

United States Senate

He was elected as a Whig to the United States Senate to fill the vacancy in the term ending March 3, 1841, caused by the resignation of John Davis and on the same day elected for the term commencing March 4, 1841, and served from January 13, 1841, until his death. He was chairman of the U.S. Senate Committee on Pensions (Twenty-seventh and Twenty-eighth Congresses); interment in Bridge Street Cemetery, Northampton, Massachusetts.