Roxbury is a town in Litchfield County, Connecticut, United States. 

Roxbury, whose Native name was Shepaug, a Mahican word signifying “rocky water”, was settled about 1713. Originally a part of Woodbury, the town was incorporated in October 1796. Roxbury is either descriptively named, or the name is a transfer from Roxbury, Massachusetts.

Mine Hill and its minerals have been associated with Roxbury since the middle of the 18th century. A silver mine was opened here and was later found to contain spathic iron, specially adapted to steel making, and a small smelting furnace was built. The abundance of granite found in many of Mine Hill’s quarries provided the building material for the ore roaster and blast furnace, as well as for such world wonders as the Brooklyn Bridge and Grand Central Terminal in New York City.