Didcot is a railway town and civil parish located in South Oxfordshire, England. It is situated approximately 15 miles (24 km) south of Oxford, 10 miles (16 km) east of Wantage, and 15 miles (24 km) northwest of Reading.
Historically part of Berkshire, the town is primarily recognized for its railway heritage. Didcot station opened as a junction station on the Great Western Main Line in 1844.