Regencies of North Sumatra

Humbang Hasundutan Regency is a regency in the southwest shore of Lake Toba of North Sumatra, Indonesia.

Karo Regency is a regency of North Sumatra, Indonesia, situated in the Barisan Mountains.

Labuhan Batu Regency (Kabupaten Labuhan Batu) is a regency of North Sumatra, Indonesia.

Langkat Regency (Indonesian: Kabupaten Langkat) is the northernmost regency of North Sumatra.

Mandailing Natal, abbreviated as Madina, is a regency in North Sumatra Province of Indonesia.

Nias Regency is a regency in North Sumatra province, Indonesia; it lies on the east side of Nias Island.

North Labuhan Batu Regency is a regency of North Sumatra, Indonesia, created in 2007 by being carved out of the existing Labuhan Batu Regency, which in 2000 covered an area of 9,323 square kilometres and had a population of 840,382 according to the 2000 census.

Nias Utara (North Nias) Regency is a regency in North Sumatra province of Indonesia.

North Padang Lawas (Padang Lawas Utara) is a regency in North Sumatra province of Indonesia.

North Tapanuli Regency (Tapanuli Utara in Indonesian, utara means north) is a regency in North Sumatra province, Sumatra, Indonesia.

Padang Lawas is a regency in North Sumatra province of Indonesia.

Pakpak Bharat Regency is a regency in North Sumatra, Indonesia.

Samosir Regency is a regency in North Sumatra.

Asahan Regency is a regency in North Sumatra, Indonesia.

Batubara Regency is a regency on North Sumatra's eastern shoreline, with Limapuluh as its seat.

Central Tapanuli Regency (Tanapuli Tengahis in Indonesia) is a regency in North Sumatra province, Sumatra, Indonesia.

Dairi Regency is a regency on the northwest shore of Lake Toba in North Sumatra.

Deli Serdang (Indonesian: Kabupaten Deli Serdang; Jawi: دلي سردڠ) is a regency in the Indonesian province of North Sumatra.

Serdang Bedagai Regency is a regency in the Eastern shores of North Sumatra facing Malaysia, with 95 km of coastline and covering an area of 1,913.

Simalungun Regency is a regency in North Sumatra.

South Labuhan Batu Regency is a regency of North Sumatra, Indonesia, created in 2007 by being carved out of the existing Labuhan Batu Regency The new South Labuhan Batu Regency covers an area of 3,596 square kilometres and according to the 2010 census it had a population of 277,549.

West Nias Regency (Bahasa Indonesia: Kabupaten Nias Barat) is a regency in North Sumatra province of Indonesia.

Toba Samosir Regency abbreviated as Tobasa is a regency in North Sumatra.

South Tapanuli is a regency in North Sumatra.

Nias Selatan (South Nias) Regency is a regency in North Sumatra province, Indonesia.