Samosir Regency is a regency in North Sumatra. Its seat is Pangururan. In 2010, the regency covered an area of 2,422.5 square kilometres and according to the 2010 census it had a population of 119,650.
6 of the 9 districts (kecamatan) within the regency are on the island of Samosir, while the others lie on the 'mainland' of Sumatra.
- Samosir Island districts
- Onan Runggu
- Palipi
- Pangururan
- Ronggur Nihuta
- Simanindo
- Sitiotio
- Mainland districts
- Harian
- Sianjur Mula Mula
- Nainggolan
Read more about Samosir Regency: Botanical Garden, Geo Park