Vennesla is a village and the administrative centre of Vennesla Municipality in Agder county, Norway. It is situated in the upper Torridal valley along the river Otra, positioned approximately 15 kilometres (9.3 mi) north of the city of Kristiansand.
The village spans about 10 kilometres (6.2 mi) along both sides of the river. Key infrastructure includes Vennesla Station on the Sørlandsbanen railway line and the Norwegian National Road 9, which passes through Mosby roughly 6 kilometres (3.7 mi) south of the village. Additionally, the lake Venneslafjorden is located on the river Otra in the northern section of the village.