Bardu (Northern Sami:Bearddu suohkan, Kven:Perttulan komuuni) is a municipality in Troms county, Norway. The administrative centre of the municipality is the village of Setermoen, the largest urban area in the municipality.

Norway's largest military garrison is located at Setermoen. The military is the municipality's largest employer and more than 1,000 young soldiers perform their duty service here each year. The world's most northern zoo, Polar Zoo is located in the southern part of the municipality.