Sira is a village in Flekkefjord municipality in Agder county, Norway.

The village is located immediately east of the county border of Agder and Rogaland.

The river and lake are both a part of the Sira-Kvina hydropower system.

Sira was the administrative centre of the former municipality of Bakke which was dissolved and merged into Flekkefjord in 1965.

Bakke Church lies at the southern end of the village.