Tranøy is a former municipality that was located in the old Troms county, Norway. The municipality is situated on the southern coast of the large island of Senja. The municipality existed from 1838 until its dissolution in 2020 when it was merged into the new Senja Municipality. The administrative centre was the village of Vangsvik in the eastern part of the municipality. Other important villages included Stonglandseidet, Skrollsvika, and Å.
