Saxmundham is a small market town in Suffolk, England. It is set in the valley of the River Fromus, a tributary of the River Alde, approximately 18 miles (29 km) northeast of Ipswich and 5 miles (8.0 km) west of the coast at Sizewell. The town is bypassed by the A12 and is served by Saxmundham railway station on the East Suffolk Line.