Caldicot was an ancient hundred of Monmouthshire, Wales.

It was situated in the south-eastern part of the county, bounded on the north by the hundreds of Usk and Raglan; on the east by Gloucestershire; on the south by the Bristol Channel, and on the west by the hundred of Wentloog.

It contained the following ancient parishes:[1] The area is now administered by the local authorities of Newport and Monmouthshire.