Lincoln Clark (August 9, 1800 – September 16, 1886) was a lawyer and one-term Democratic U.S. Representative from Iowa's 2nd congressional district.

His life began and ended in the same small town in western Massachusetts, but included service in every branch of Alabama state government, the U.S. Congress, and the Iowa General Assembly.

Two years later, in 1850, he was elected as a Democrat to represent Iowa's 2nd congressional district, defeating Whig candidate John Parsons Cook by only 150 votes out of over 15,000 cast.

Clark eventually left Iowa to practice law in Chicago, Illinois.

This article incorporates public domain material from the Biographical Directory of the United States Congress