, , or is a village in Gáivuotna Municipality (also known as KÃÂ¥fjord Municipality) in Troms county, Norway. The village is located along the KÃÂ¥fjordelva river () at the end of the KÃÂ¥fjorden in the KÃÂ¥fjorddalen valley. The whole area around the end of the fjord is called KÃÂ¥fjordbotn ().
The village has a population (2023) of 231 and a population density of .
Birtavarre is located along European route E6 about southeast of the municipal centre of Olderdalen (on the north side of the fjord) and about southeast of Samuelsberg and Manndalen (on the south side of the fjord). Birtavarre Chapel is also located in the village.
Birtavarre is an old mining town with smelters in Ankerlia that are preserved by the Nord-Troms Museum. It was during the mining period that the village adopted the name Birtavarre. Up until that time the area had been called KÃÂ¥fjordbotn, meaning the end of the KÃÂ¥fjorden. Since there was also mining in the village of KÃÂ¥fjord in the nearby Alta Municipality, many workers ended up in the wrong KÃÂ¥fjord. The name was changed simply for the practical reason of avoiding confusion. The present name for the village comes from the nearby mountain Pirttivaara which derives from an old Kven language name.