Rogiet is a village and community in Monmouthshire, south east Wales, between Caldicot and Magor, 8 miles (13 km) west of Chepstow and 11 miles (18 km) east of Newport. It lies close to the M4 and M48 motorways, and the Second Severn Crossing. It has a railway station named Severn Tunnel Junction.
The village adjoins the Caldicot Levels. Its name is of uncertain derivation, and was formerly spelled Roggiatt, Roggiett or Roggiet. The first known lord of the manor was Godfrey de Gamage, who married Joan, the daughter of Richard de Clare, Earl of Pembroke, known as "Strongbow", in the 12th century.
The Church of St Mary, Rogiet is the parish church, which in earlier centuries was dedicated to St. Hilary. Much of the church dates from about the 14th century, and it was restored in the 19th and early 20th centuries.