| Official Name: | Mohanganj |
| Native Name: | মোহনগঞ্জ |
| Settlement Type: | Upazila |
| Coordinates: | 24.8667°N 148°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Type2: | District |
| Subdivision Name1: | Mymensingh |
| Subdivision Name2: | Netrokona |
| Area Total Km2: | 243.2 |
| Population Total: | 166421 |
| Population As Of: | 2022 |
| Population Footnotes: | [1] |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
| Postal Code: | 2446[2] |
| Area Code: | 09524[3] |
| Website: | http://mohongonj.netrokona.gov.bd/ |
| Timezone: | BST |
| Utc Offset: | +6 |
Mohanganj (bn|মোহনগঞ্জ) is an upazila of Netrokona District in the Mymensingh division of Bangladesh. It is one of the 10 upazilas of Netrakona district. Mohanganj is largely known as the capital of Lower Bangladesh as it is the economic heart of Lower Bangladesh generally known as Haor.
Mohanganj is located at 24.8667°N 90.9667°W. It has 24011 households and a total area of 243.2 km2. The Upazila is bounded by Barhatta Upazilas and Sunamganj district on the north, Khaliajuri and Sunamganj district on the east, Madan Upazila on the south and Atpara Upazila on the west.
Mohanganj is a true example of riverine Bangladesh. This part of Bangladesh is beautified by the famous Kangsha River (bn|কংস নদী) which is also the backbone of transportation and economic system. Except this, numerous canals, small rivers crisscrossed that land and established itself as an important Upazila of rural Bangladesh.
According to the 2011 Census of Bangladesh, Mohanganj Upazila had 34,885 households and a population of 167,507. 46,091 (27.52%) were under 10 years of age. Mohanganj has a literacy rate (age 7 and over) of 42.13%, compared to the national average of 51.8%, and a sex ratio of 989 females per 1000 males. 27193 (16.23%) lived in urban areas.[4] [5]
As of the 1991 Bangladesh census, Mohanganj had a population of 129415. Males constituted 51.4% of the population, and females 48.6%. Upazila's 18+ population was 65417. Mohanganj had an average literacy rate of 64.73%, and the national average of 72.89% literate according to 2017 data.[6] [7]
There is an ancient fort at the village Betham (Sultan Alauddin Hussain Shah period), Sheikh Bari Mosque (same period), and Daulatpur Temple (876 BS).
Agriculture 48.25%, fishing 2.62%, agricultural laborer 21.21%, wage laborer 2.53%, commerce 9.84%, service 3.49% and others 12.06%.
Fertile land 24864.43 hectares, fallow land 390.84 hectares; single crop 52%, double crop 38% and treble crop land 10%; land under irrigation 71%.
Mohanganj Thana, now an upazila, was formed on 6 April 1920.
Mohanganj Upazila is divided into Mohanganj Municipality and seven union parishads: Barkashia Birampur, Baratali Banihari, Gaglajur, Maghan Siadhar, Samaj Sahialdeo, Suair, and Tentulia. The union parishads are subdivided into 111 mauzas and 163 villages.
Mohanganj Municipality is subdivided into 9 wards and 18 mahallas.[8]
Mohanganj Upazila has a strong waterway connection with Sylhet, Sunamganj, Bhairab Bazar and Dhaka. Alongside, the road network system connected it with Netrokona, Mymensingh and to the capital, Dhaka. There is two intercity train now running from Dhaka to Mohanganj. Haor express departs at 11:50pm from kamlapur railway station and Mohanganj express departs Dhaka at 2:20 pm. Visiting Tanguar Haor through this route is also a good option other than the popular Sunamganj route.