Vipava is a town in western Slovenia. It is the largest settlement and the seat of the Municipality of Vipava. Vipava is located near the numerous sources of the Vipava River, in the upper Vipava Valley, 102 metres (335 ft) above sea level. Historically, it is part of the traditional region of Inner Carniola, but it is now generally regarded as part of the Slovenian Littoral.

The Vipava Valley is a valley in the Slovenian Littoral, roughly between the village of Podnanos to the east and the border with Italy to the west. The main towns are Ajdovščina and Vipava.