Lake Success is a village in the Town of North Hempstead in Nassau County, on the North Shore of Long Island, in New York, United States. The population was 2,897 at the 2010 census.
The Incorporated Village of Lake Success was the temporary home of the United Nations from 1946 to 1951, occupying the headquarters of the Sperry Gyroscope Company on Marcus Avenue. It was the home of Canon U.S.A., Inc. Canon U.S.A. has since moved its corporate headquarters to Melville, New York.