Robert McClellan (October 2, 1806 – June 28, 1860) was a U.S. Representative from New York. Born in Livingston, New York, McClellan was graduated from Williams College, Williamstown, Massachusetts, in 1825. He studied law. He was admitted to the bar and practiced his profession in Middleburgh, New York from 1828 to 1843. McClellan was elected as a Democrat to the Twenty-fifth Congress (March 4, 1837 – March 3, 1839). McClellan was elected to the Twenty-seventh Congress (March 4, 1841 – March 3, 1843). He served as chairman of the Committee on Patents (Twenty-seventh Congress). He died in Greenpoint, Brooklyn, New York, June 28, 1860. He was interred in Greenwood Cemetery.