Shahjadpur (Bengali: শাহজাদপুর) is an upazila, or sub-district of Sirajganj District, located in Rajshahi Division, Bangladesh.

[4] In c. 1250, a Yemenite Sufi prince known as Makhdum Shah Daulah settled in the area now comprising Shahzadpur, along with his sister, three nephews, twelve disciples and other followers.

He is credited for propagating Islam in the region despite the displeasure of the local Hindu raja Vikrama Keshari.

Keshari later repented for his hostility towards the Muslim community and buried their deceased with due solemnity.

Raja Ray was eventually defeated by the forces of Tuqmaq Khan, and later submitted to the Mughals, fighting on their behalf.

[8] Shahzadpur Thana was upgraded to an upazila (sub-district) in 1983 as part of the President of Bangladesh Hussain Muhammad Ershad's decentralisation programme.

Shahjadpur had a literacy rate (age 7 and over) of 38.38%, compared to the national average of 51.8%, and a sex ratio of 980 females per 1000 males.

Another point of interest is Naiem Hasan's House Shahzadpur thana was established in 1845 and was turned into an upazila in 1982.

Shahjadpur upazila is represented in the Jatiya Sangsad (National Parliament) of Bangladesh in the name of Sirajganj-6 constituency.

[10][13] The upazila is consist of 13 union parishads: Beltail, Gala, Garadaha, Habibullanagar, Jalalpur, Kayempur, Khukni, Narnia, Porjana, Potajia, and Sonatani.

Its permanent campus will be constructed about 7 km west of Shahjadpur upazila town of Sirajganj.