Simsbury Center is a census-designated place (CDP) that consists of the central settlement, and the neighborhoods immediately surrounding it, in the town of Simsbury, Connecticut, in the United States. As of the 2010 census, the CDP had a population of 5,836. The core area of the CDP is listed as the Simsbury Center Historic District on the National Register of Historic Places.

Simsbury is a town in Hartford County, Connecticut, United States, incorporated as Connecticut's 21st town in May 1670. The town is part of the Capitol Planning Region. The population was 24,517 in the 2020 census.