Tredegar Park (Welsh: Parc Tredegar) 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.

It formerly formed part of the original 16th century estate of the Morgan family, first substantially redeveloped by William Morgan (of Machen and Tredegar) in the 17th century and owned for generations by the Lords Tredegar. The Grade I building, Tredegar House, and the Grade I listed stables, are also situated within the park.

The park is very large, comprising around 90 acres (36 ha) and includes a large lake that it is possible to walk around.

The present day community (parish) of Tredegar Park is a much smaller area consisting of the Duffryn estate and immediate surroundings. The park itself falls within the boundaries of Coedkernew.

Parkrun (a UK-wide running series) takes place in the grounds of the park each Saturday at 9am. The first event was hosted in 2011. As of May 2024, 586 runs have been held, attracting 20,284 runners. An average of over 300 people compete each week, however some events have attracted up to 700 competitors.

The National Trust took over management of the Country House and Grounds in 2015. As a condition of their management, the grounds and gardens of the house are to remain free for the public to access, with the House entry at £10.10 for adults as part of the Trust's costs to manage their estates.

• List of gardens in Wales

• Tredegar House at National Trust
• Tredegar House at Newport City Council
• Tredegar House Country Park at Trip Advisor
• Tredegar House Country Park at Caravan Club

51°33′49″N 3°01′55″W / 51.56361°N 3.03194°W / 51.56361; -3.03194