1 Agincourt Square, Monmouth, Monmouthshire, Wales is a notable early seventeenth century half-timbered building.

[1] The initials on either side of the date are those of William Roberts, whose grandson rebuilt Drybridge House in Monmouth.

John V. Hiling, in his study The Architecture of Wales: From the first to the twenty-first century, considers it one of the two notable Tudor buildings in the town, and notes the two-storey oriel window.

A house on the site is shown on John Speed's map of Monmouth Town dated 1610, the street plan on which was to remain unaltered until the 19th century.

After the butchers moved out the premises were extensively restored and were given an award by Monmouth Civic Society on 16 October 1991.