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.