Rothwell is a market town in North Northamptonshire, England. It is close to three larger towns, situated 4 miles northwest of Kettering, 7 miles …Rothwell is a market town in North Northamptonshire, England. It is close to three larger towns, situated 4 miles northwest of Kettering, 7 miles southeast of Market Harborough and 8 miles southwest of Corby. Rothwell's nearest railway station is at Kettering on the Midland Main Line.