Clarkson Nott Potter (April 25, 1825 – January 23, 1882) was a New York attorney and politician who served in the United States House of Representatives.
Potter was born in Schenectady, New York on April 25, 1825. He graduated from Union College in 1842, and completed his qualifications as a civil engineer at Rensselaer Polytechnic Institute in 1843.
He relocated to Wisconsin, where he worked as an engineer and surveyor. Potter then studied law, was admitted to the bar in 1846 and commenced to practice in New York City.
In 1868 he was elected as a Democrat to represent New York's 10th District in the 41st United States Congress. He was reelected to the 42nd and 43rd Congresses, the last term from the 11th District, and served from March 4, 1869 to March 3, 1875. He did not run for reelection in 1874.
In 1876 Potter again elected to the House, and represented New York's 12th District in the 45th Congress, serving from March 4, 1877 to March 3, 1879. During this term Potter was appointed Chairman of the Committee on Pacific Railroads. He did not run for reelection in 1878.
Potter was President of the New York State Democratic Conventions in 1875 and 1877, and he was a Delegate to the Democratic National Conventions in 1872 and 1876. He ran unsuccessfully for Lieutenant Governor of New York in 1879.