Tredunnock (Welsh: Tredynog) is a small village in Monmouthshire, south east Wales, in the United Kingdom.

[1] Writing in the Imperial Gazetteer of England and Wales in 1870 to 1872, the historian John Marius Wilson described the village thus: "Tredunnock, a parish in Newport district, Monmouth; 4¼ miles S of Usk r. station.

"[2] The parish church of St Andrew, which has a 14th-century tower, contains a Roman tablet dedicated to a soldier of the Second Augustan Legion, the Legio II Augusta, by his wife.

The graveyard contains the tomb of Isabella Gell, wife of Rev John Philip Gell and only daughter of Sir John Franklin pioneer of the Northwest Passage.

[3] In the early 19th century, at the time of William Coxe's visit to the area, there was a forge at Trostrey, near Kemeys Commander, from which bar iron was sent by road to "Tredunnock bridge" for conveyance down river to Newport and onward for export to Bristol.