Devils Brook is a tributary of the Millstone River in central New Jersey in the United States.

The Devils Brook starts at 40°21′22″N 74°29′47″W / 40.35611°N 74.49639°W / 40.35611; -74.49639,[1] near exit 8A on the New Jersey Turnpike.

It joins with Shallow Brook, its tributary, and crosses Scudders Mill Road, also known as CR-614.

It crosses Princeton-Plainsboro Road in a dammed section known as Gordon Pond.

[1] The Devils Brook drains a large area in Mercer and Middlesex counties.