This list details scheduled monuments in the historic county of Montgomeryshire, now part of Powys, Wales, dating from the Roman period to the modern era. Scheduled monuments are nationally important archaeological sites or historic buildings that are given protection under the Ancient Monuments and Archaeological Areas Act 1979. The list includes sites of diverse types and periods, representing the rich archaeological heritage of the region.
The entries typically include the monument's name, location (often with grid reference), designation details, and a brief description outlining its historical significance. Monument types commonly found in Montgomeryshire's scheduled list can include hillforts, burial mounds (barrows and cairns), standing stones, Roman roads and fortifications, medieval castles and settlements, industrial sites (such as mines and quarries), and early modern defensive structures.
The purpose of this list is to provide a comprehensive overview of protected archaeological assets, facilitating research, education, and responsible management of the historical environment. The scheduling of a monument signifies its national importance and requires that any works affecting it be subject to consent from Cadw, the Welsh Government's historic environment service. This ensures the preservation and understanding of these valuable historical resources for future generations.