Sagamore Hill was the home of the 26th president of the United States, Theodore Roosevelt, from 1885 until his death in 1919. It is located in Cove Neck, New York, near Oyster Bay on the North Shore of Long Island, 25 miles (40 km) east of Manhattan. It is now the Sagamore Hill National Historic Site, which includes the Theodore Roosevelt Museum in a later building on the grounds.

Cove Neck is a village located within the Town of Oyster Bay in Nassau County, on the North Shore of Long Island, in New York. The population was 286 at the 2010 census.