Balasore District, also known as Baleswar District or Baleshwar District, is an administrative district of Odisha state in eastern India. Balasore is one of the coastal Districts of Odisha. It lies on the northernmost part of the state. It was a part of the ancient Kalinga which later became a territory of Toshal or Utkal, till the death of Mukunda Dev. Balasore as a separate District was created in October 1828. originally it was in Bengal presidency.

Balasore District covers an area of 3634 km2 having total population of 23,17,419 as per 2011 census. The District is surrounded by Medinipur District of West Bengal in its northern side, Bay of Bengal in its east, Bhadrak District in its south and Mayurbhanj and Kendujhar Districts lies on its western side. The District is located at 20.48 to 21.59 North Latitude and 86.16 to 87.29 east Longitude.

It is now a launch station for sounding rockets on the east coast of India in Odisha state at 21°18′ N and 86°36′ E. Balasore has been in use since 1989, but unlike Sriharikota, it is not used for launching satellites. The rocket launching site at Balasore is situated in a place called Chandipur located on the Bay of Bengal. The Integrated Test Range in Chandipur is responsible for carrying out tests for various missiles such as Agni, Prithvi, Trishul etc.

Balasore Railway Station falls en route on the main line connecting Chennai to Kolkata. Road connectivity wise, National Highway-5 runs through Balasore. It is 212 km north-east of Bhubaneswar by road. Chandipur-on-sea is a sea resort famous for its mile long shallow beaches. Chandipur on sea is one of the shallowest sea beaches in the world. It is a unique beach, the tide comes to the shore only four times a day, at determined intervals. Among other tourist attractions is the 18th century kshirochora-gopinath temple, famous for its mythological story, how the temple was built there.

Birthplace of linguist and novelist Fakir Mohan Senapati, considered to be the saviour of modern Odia language and an eminent freedom fighter. Also birthplace of famous Oriya poet Kabibar Radhanath Roy.

Balasore district was a part of the ancient Kalinga and later became a territory of Toshala or Utkal, till the death of Mukunda Dev. It was annexed by Mughals in 1568 and remained as a part of their suzerainty up to 1750-51. Subsequently, the Marathas of Nagpur occupied this part of Odisha and it came under the dominion of the Maratha Rajas. In 1803, this part was ceded to The British East India Company through the Treaty of Deogaon and it became a part of Bengal Presidency until 1912. But the first English Settlement came into existence in Balasore region in 1634 while Shah Jahan was the emperor at Delhi. The region was an early trading port for British, French and Dutch ships in the early age of Enlightenment and became a colonial part of first Danish India and later British India. The first of English factories was established in this region in 1640. During this period Dutch and Danish settlements were also found in this region.

Balasore district is located in the northeast of the state of Odisha and lies between 21° 3′ to 21° 59′ north latitude and 86° 20′ to 87° 29′ east longitude. The average altitude of the district is 19.08 metre. The district has a total area of 3634 km2. It is bounded by Midnapore district of West Bengal in its North, the Bay of Bengal in the east, Bhadrak district in the South and Mayurbhanj and Keonjhar districts on its western side.

Balasore District is one of the economically strong District in Odisha, which is privileged in both agriculture and industry. In spite of being an agrarian economy, agriculture is the main stay of the people of Balasore. The District lies in the coastal part of Odisha and is blessed with hot and humid climate with alluvium soil and intersected by the perennial rivers, which collectively provides conducive infrastructure for the growth of agriculture in this region. In the recent years, the utilization of the wasteland for ensuring the economic development of Balasore District has been taken into consideration and it is being used for the production of coconut and betel. The local economy of Balasore District largely depends on the cultivation of paddy and wheat.

Balasore Railway Station falls en route on the main line connecting Chennai to Kolkata. National Highway-5 runs through Balasore, and National Highway-60, which connects Balasore to Kolkata, is a four lane express way.Nearest Airport from Balasore is Bhubneswar and Kolkata a ride of approximately 3 and half hours.Balasore runs State Buses (OTDC) which provide Point to Point Service from Kolkata to Bhubneswar (Via Balasore).

According to the 2011 census Balasore district has a population of 2,317,419, roughly equal to the nation of Latvia or the US state of New Mexico.This gives it a ranking of 195th in India (out of a total of 640).The district has a population density of 609 inhabitants per square kilometre (1,580/sq mi).Its population growth rate over the decade 2001-2011 was 14.47%.Baleshwar has a sex ratio of 957 females for every 1000 males, and a literacy rate of 80.66%.