Overton is a large village and parish in Hampshire, England located west of the town of Basingstoke, and east of Andover and Whitchurch. The smaller village of Quidhampton lies to the north of the village. The River Test has its source to the east, near the hamlet of Ashe.
There is evidence of Stone Age and Bronze Age habitation in this locality with finds and barrows located near the village. It is host to the quadrennial Overton Sheep Fair. The modern fair was first held in 2000 and most recently in July 2012. It commemorates farmers leading sheep through the village many years ago, as well as the Overton Mummers, who perform frequently over the Yuletide period outside some of the public houses in the village.