Tredegar Park is a 90-acre (36 ha) country park situated in the Coedkernew area of Newport, Wales. It lies close to junction 28 of the M4 motorway connecting London and West Wales.

The M4, originally the London-South Wales Motorway, is a motorway in the United Kingdom running from west London to southwest Wales. The English section to the Severn Bridge was constructed between 1961 and 1971; the Welsh element was largely complete by 1980, though a non-motorway section around Briton Ferry bridge remained until 1993. On the opening of the Second Severn Crossing in 1996, the M4 was rerouted over it.