Broad Brook, Connecticut is a census-designated place in East Windsor, Connecticut, US.
Broad Brook may also refer to:
Broad Brook Company, a defunct textiles plant in East Windsor, Connecticut, listed on the National Register of Historic Places (NRHP) Broad Brook Canal, a water-supply canal in Ludlow, Massachusetts, US Broad Brook House, a tavern house in Guilford, Vermont; NRHP-listed