Odiham ( or ) is a large historic village and civil parish in the Hart district of Hampshire, England. It is twinned with Sourdeval in the Manche Department of France. The 2011 population was 4,406. The parish in 1851 had an area of 7,354 acres with 50 acres covered by water. The nearest railway station is at Hook, on the South West main line. The village had its own hundred in the nineteenth century, named The Hundred of Odiham. The village is situated slightly south of the M3 motorway and approximately midway between the north Hampshire towns of Fleet and Basingstoke, some 37 miles (59.5 km) north of Southampton and 43 miles (69 km) southwest of London.