| Other Name: | Kåfjordbotn |
| Settlement Type: | Village |
| Pushpin Map: | Troms#Norway |
| Pushpin Label: | Birtavarre |
| Pushpin Label Position: | right |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Northern Norway |
| Subdivision Name2: | Troms |
| Subdivision Type3: | District |
| Subdivision Name3: | Nord-Troms |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Gáivuotna Municipality |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Area Total Km2: | 0.37 |
| Population As Of: | 2023 |
| Population Total: | 231 |
| Population Density Km2: | 624 |
| Postal Code Type: | Post Code |
| Postal Code: | 9147 Birtavarre |
| Coordinates: | 69.4952°N 20.8304°W |
| Elevation M: | 10 |
| Elevation Footnotes: | [1] |
,, or [2] is a village in Gáivuotna Municipality (also known as Kåfjord Municipality) in Troms county, Norway. The village is located along the Kåfjordelva river (Northern Sami: Gáivuoneatnu) at the end of the Kåfjorden in the Kåfjorddalen valley. The whole area around the end of the fjord is called Kåfjordbotn (Northern Sami: Gáivuonbahta).
The 0.37km2 village has a population (2023) of 231 and a population density of .[3]
Birtavarre is located along European route E6 about 18.3km (11.4miles) southeast of the municipal centre of Olderdalen (on the north side of the fjord) and about 12.5km (07.8miles) 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 Kåfjordbotn, meaning the end of the Kåfjorden. Since there was also mining in the village of Kåfjord in the nearby Alta Municipality, many workers ended up in the wrong Kåfjord. 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.