The Somersville Historic District encompasses the historic components of the mill village of Somersville in western Somers, Connecticut, United States. The district is centered on a mill complex on the Scantic River, which divides the district. The most significant years of development were between about 1835 and 1935, although the area has a history (and surviving structures) dating to the 1760s. The district was listed on the National Register of Historic Places in 1995. The Mill itself has since burned down and as of October 2018 is currently open field, although the canal structure remains in place.