Saybrook is a village in southeast McLean County, Illinois, United States. The population was 764 at the 2000 census. It is part of the Bloomington–Normal Metropolitan Statistical Area.
Known by locals as the "City of Shade and Water", its founders named it in honor of Old Saybrook, Connecticut.
Saybrook is located at 40°25′39″N 88°31′36″W / 40.4275°N 88.52667°W / 40.4275; -88.52667 (40.427490, -88.526536).