Barus

thumb|right|Map showing the location of Barus on the west coast of Sumatra

Barus is a town and kecamatan (district) in Central Tapanuli Regency, North Sumatra Province, Sumatra, Indonesia. Historically, Barus was well known as a port town or kingdom on the western coast of Sumatra where it was a regional trade center from around the 7th or earlier until the 17th century. It was also known by other names, namely Fansur and possibly Barusai. The name Fansur or Pansur means "spring of water" or "a place where water flows" in the local Batak language. Barus was well known for its production of camphor. In the 16th century, Barus became absorbed into the rising power of the Aceh Sultanate. The earliest known Malay poet Hamzah Fansuri may be from Barus as indicated by his name.