Moulsford Railway Bridge, known locally as "Four Arches" bridge is a pair of parallel bridges located a little to the north of Moulsford and South Stoke in Oxfordshire, UK. It carries the Great Western Main Line from Paddington, London to Wales and the West across the River Thames. It lies between the stations at Goring & Streatley and Cholsey, and crosses the Thames at an oblique angle on the reach between Cleeve Lock and Benson Lock. It is a Grade II* listed structure.