Heddal stave church is a stave church located at Heddal in Notodden municipality, Norway. The church is a triple nave stave church and is Norway's largest stave church. It was constructed at the beginning of the 13th century. After the reformation, the church was in a very poor condition, and a restoration took place during 1849–1851. However, because the restorers lacked the necessary knowledge and skills, yet another restoration was necessary in the 1950s.