Bridgewater is a hamlet (and census-designated place) in Oneida County, New York, United States.

The Unadilla Valley Railway had its northern terminus at Bridgewater where it connected to a branch line of the Delaware, Lackawanna and Western Railroad.

The Brick Store Building and Bridgewater Railroad Station are listed on the National Register of Historic Places.

[5] According to the United States Census Bureau, the hamlet has a total area of 0.6 square mile (1.6 km2), all land.

The racial makeup of the village was 98.45% White, 0.69% Black or African American, and 0.86% from two or more races.