
The provinces of Bulgaria are the first level administrative subdivisions of the country.

Blagoevgrad Province, also known as Pirin Macedonia or Bulgarian Macedonia, is a province (oblast) of southwestern Bulgaria. It borders four other Bulgarian provinces to the north and east, the Greek region of Macedonia to the south, and North Macedonia to the west. The province has 14 municipalities with 12 towns. Its principal city is Blagoevgrad, while other significant towns include Bansko, Gotse Delchev, Melnik, Petrich, Razlog, Sandanski, and Simitli.

Burgas Province is a province in southeastern Bulgaria, including southern Bulgarian Black Sea Coast. The province is named after its administrative and industrial centre - the city of Burgas - the fourth biggest town in the country. It is the largest province by area, embracing a territory of 7,748.1 km2 (2,991.6 sq mi) that is divided into 13 municipalities with a total population, as of December 2009, of 422,319 inhabitants.

Dobrich Province is a province in northeastern Bulgaria, part of Southern Dobruja geographical region. It is bounded on east by the Black Sea, on south by Varna Province, on west by Šumen and Silistra provinces, on the north by Romania. It is divided into 8 municipalities. At the 2011 census, it had a population of 186,016. The province was part of Romania until 1940.

Gabrovo Province is a small province lying at the geographical centre of Bulgaria. It is named after its main town - Gabrovo. In 2009 the total population of the area is 130,001.

Haskovo Province is a province in southern Bulgaria, neighbouring Greece and Turkey to the southeast, comprising parts of the Thracian valley along the river Maritsa. It is named after its administrative and industrial centre - the city of Haskovo. The province embraces a territory of 5,533.3 km2 (2,136.4 sq mi) that is divided into 11 municipalities with a total population, as of December 2009, of 256,408 inhabitants.

Kardzhali District is a province of southern Bulgaria, neighbouring Greece with the Greek regional units of Xanthi, Rhodope, and Evros to the south and east. It is 3209.1 km2 in area. Its main city is Kardzhali.

Kyustendil Province is a province in southwestern Bulgaria, extending over an area of 3,084.3 km2 (1,190.9 sq mi), and with a population of 163,889. It borders on the provinces of Sofia, Pernik, and Blagoevgrad; to the west, its limits coincide with the state borders between Bulgaria and North Macedonia, and between Bulgaria and the Republic of Serbia. The administrative center of the Province is Kyustendil.

Lovech Province is one of the 28 provinces of Bulgaria, lying at the northern centre of the country. It is named after its main city - Lovech. As of December 2009, the population of the area is 151,153.

Montana Province is a province in northwestern Bulgaria, bordering Serbia in the southwest and Romania in the north. It spreads its area between the Danube river and the Balkan Mountains. As of February 2011, the province has a population of 148,098 inhabitants, on territory of 3,635.5 km2 (1,403.7 sq mi). It was named after its administrative centre the city of Montana.

Pazardzhik Province is a province in Southern Bulgaria, named after its administrative and industrial centre - the city of Pazardzhik. The territory is 4,456.9 km2 (1,720.8 sq mi) that is divided into 12 municipalities with a total population of 275,548 inhabitants, as of February 2011.

Pernik Province is a province in western Bulgaria, neighbouring Serbia. Its main city is Pernik, and other municipalities are Breznik, Kovachevtsi, Radomir, Tran, and Zemen.

Pleven Province is a province located in central northern Bulgaria, bordering the Danube river, Romania and the Bulgarian provinces of Vratsa, Veliko Tarnovo and Lovech. It is divided into 11 subdivisions, called municipalities, that embrace a territory of 4,653.32 km2 (1,796.66 sq mi) with a population, as of February 2011, of 269 752 inhabitants. The province's capital is the city of Pleven.

Plovdiv Province is a province in central southern Bulgaria. It comprises 18 municipalities on a territory of 5,972.9 km2 (2,306.1 sq mi) with a population, as of February 2011, of 683,027 inhabitants. The province is named after its administrative and industrial centre — the city of Plovdiv.

Razgrad Province is a province in Northeastern Bulgaria, geographically part of the Ludogorie region. It is named after its administrative and industrial centre - the town of Razgrad. As of December 2009, the Province has a total population of 132,740 inhabitants on a territory of 2,639.7 km2 (1,019.2 sq mi) that is divided into 7 municipalities.

Ruse Province is a province in northern Bulgaria, named after its main city - Ruse, neighbouring Romania via the Danube. It is divided into 8 municipalities with a total population, as of February 2011, of 235,252 inhabitants.

Shumen Province is a province in northeastern Bulgaria named after its main city Shumen. It is divided into 10 municipalities with a total population, as of December 2009, of 194,090 inhabitants.

Silistra Province is a province of Bulgaria, named after its main city - Silistra. It is divided into seven municipalities with a total population, as of December 2009, of 127,659. The province is part of Southern Dobrudja, which was part of Romania until 1940.

Sliven Province is a province in southeastern Bulgaria, named after its administrative and industrial centre — the city of Sliven. It embraces a territory of 3,544.1 km2 (1,368.4 sq mi) that is divided into four municipalities, with a total population, as of December 2009, of 204,887.

Smolyan Province is a province in Southern-central Bulgaria, located in the Rhodope Mountains, neighbouring Greece to the south. It is named after its administrative and industrial centre—the city of Smolyan. The province embraces a territory of 3,192.8 km2 (1,232.7 sq mi). that is divided into 10 municipalities with a total population of 124,795 inhabitants, as of December 2009.

Sofia City Province is a province (oblast) of Bulgaria. Its administrative center is the city of Sofia, the capital of the country.

Sofia Province is a province (oblast) of Bulgaria. The province does not include Sofia in its territories, but Sofia remains its administrative center. The province borders on the provinces of Pernik, Kyustendil, Blagoevgrad, Pazardzhik, Plovdiv, Lovech, Vratsa, Montana and "Sofia City Province", to the northwest there is border with Serbia.

Stara Zagora, formerly known as the Stara Zagora okrug, is a province of south-central Bulgaria. It is named after its administrative and industrial centre—the city of Stara Zagora—the sixth-biggest town in the country. The province embraces a territory of 5,151.1 km2 (1,988.9 sq mi) that is divided into 11 municipalities with a total population, as of December 2009, of 350,925 inhabitants.

Targovishte Province is a province in northeastern Bulgaria, named after its main city - Targovishte. As of December 2009, it has a population of 129,675 inhabitants.

Varna Province, formerly known as Varna okrug, is a province in eastern Bulgaria, one of the 28 Bulgarian provinces. It comprises 12 municipalities with a population of 494,216 inhabitants as of April 2016. The province is named after its administrative centre, Varna.

Veliko Tarnovo is a province in the middle of the northern part of Bulgaria. Its capital city, Veliko Tarnovo, is of historical significance as it is known as the capital of the Bulgarian Empire. The province is divided into 10 municipalities with a total population, as of December 2009, of 275,395 inhabitants.

Vidin Province is the northwesternmost province of Bulgaria. It borders Serbia to the west and Romania to the northeast. Its administrative centre is the city of Vidin on the Danube river. The area is divided into 11 municipalities. As of December 2009, the province has a population of 108,067 inhabitants.

Vratsa Province is a Bulgarian province located in the northwestern part of the country, between Danube river in the north and Stara Planina mountain in the south. It is named after its main town - Vratsa. As of 2016, the province has a population of 170 367 inhabitants, on territory of 3,619.7 km2 (1,397.6 sq mi).

Yambol is a province in southeastern Bulgaria, neighbouring Turkey to the south. It is named after its main city Yambol, while other towns include Straldzha, Bolyarovo and Elhovo. The province embraces a territory of 3,355.5 km2 (1,295.6 sq mi) that is divided into 5 municipalities with a total population, as of December 2009, of 138,429 inhabitants.