Ambrose Williams Clark (February 19, 1810 – October 13, 1887) was a U.S. Representative from New York, serving 1861–1865.

Born near Cooperstown, New York, Clark attended the public schools, was trained as a printer, and became active in the newspaper business as an advocate of Whig Party politics.

He was appointed consul at Valparaíso, Chile by President Lincoln and served from 1865 to 1869.

Clark's daughter Paulina Sabina was the wife of George A.

[2][3] This article incorporates public domain material from the Biographical Directory of the United States Congress