The Whitinsville Historic District is a historic district on Church, East, Fletcher, Hill, Woodland, Lake, and Water Sts., Castle Hill Rs., and Linwood Avenue in Northbridge, Massachusetts.

The district encompasses the historic 19th century mill village of Whitinsville, which grew up around an 1826 brick mill building (which still stands) erected by Paul Whitin.

The Whitin family came to dominate the textile trade in Northbridge, with numerous mill complexes.

[1] The district has been included as part of the Blackstone River Valley National Historical Park.

This article about a National Register of Historic Places listing in Worcester County, Massachusetts is a stub.