Millbrook, Llanvihangel Crucorney, Monmouthshire is a house dating from the early 17th century and is a Grade II* listed building.

The architectural historian John Newman suggests a construction date of the late 16th century,although Cadw considers a date c.1600 more probable. Newman describes the main block as a "classic two-unit house". Constructed of Old red sandstone rubble, now whitewashed, to an L-plan, the roof is a modern replacement. The interior is largely unaltered. Privately owned, the house is available to rent. Millbrook is Grade II* listed, its listing record describing it as a "well-preserved sub-medieval house with fine interiors".

• Newman, John (2000). Gwent/Monmouthshire. The Buildings of Wales. London: Penguin. ISBN 0-14-071053-1.