Rock Ridge is a census-designated place (CDP) in the town of Greenwich, Fairfield County, Connecticut, United States.

It is in the western part of the town, just 1 mile (2 km) east of the New York state border.

Rock Ridge was first listed as a CDP prior to the 2020 census.

As with other parts of the Town of Greenwich, Rock Ridge is in the Greenwich Public Schools school district.

This Connecticut state location article is a stub.