Bijoynagar (Bengali: বিজয়নগর) is an upazila of Brahmanbaria District in the Division of Chittagong, Bangladesh.

In 1618 CE during the reign of Jahangir, his commander in chief Daud Khan occupied this area from the king of Tripura.

Daudpur, Sarail, Bejura and Haripur were separated from Mymensingh and submitted to Brahmanbaria.

Bijoynagar had a literacy rate (age 7 and over) of 53.41%, compared to the national average of 51.8%, and a sex ratio of 1048 females per 1000 males.

[5] Bijoynagar Upazila is divided into ten union parishads: Bhudanty, Bishupor, Chandura, Char Islampur, Champaknagar, Harashpur, Ichhapur, Paharpur, Pattan, and Singerbil.