The A415 is a British A road which runs from the A4074 at Berinsfield, Oxfordshire (51°39′33″N 1°10′34″W / 51.6591°N 1.1762°W), to Witney (51°47′07″N 1°29′47″W / 51.7852°N 1.4965°W), passing through Abingdon, Marcham and Kingston Bagpuize. It crosses the River Thames twice, at Abingdon Bridge and Newbridge.