The Oliver Wolcott House is a historic colonial home at South Street near Wolcott Avenue in Litchfield, Connecticut. It was built in 1753 by Founding Father Oliver Wolcott Sr., a signer of the Declaration of Independence and the Articles of Confederation, and a state militia leader in the American Revolutionary War. It is the oldest house in the borough. It was the home of Oliver Wolcott Sr. (1726–1797), and is where his son Oliver Wolcott Jr., was born. Many distinguished guests visited the Wolcott House, including Lafayette and George Washington, who stayed there in 1780 during his first visit to Litchfield. The house was declared a National Historic Landmark in 1971. It is located on South Street, nearly opposite to Wolcott Avenue. The house is not open to the public.