Tadley is a town and civil parish in the Basingstoke and Deane district of Hampshire, England, 5.5 miles (8.9 km) north of Basingstoke and 11 miles (17 km) south west of Reading.

Basingstoke and Deane is a local government district with borough status in Hampshire, England. The main town is Basingstoke, where the council is based. The district also includes the towns of Tadley and Whitchurch, along with numerous villages and surrounding rural areas. The modern district was created in 1974, initially being called Basingstoke. It changed its name to "Basingstoke and Deane" in 1978 at the same time that it was made a borough; Deane was added to the name to represent the rural parts of the borough, being the area's smallest village.