| Official Name: | Nasirnagar |
| Native Name: | নাসিরনগর |
| Settlement Type: | Upazila |
| Coordinates: | 24°N 91°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Type2: | District |
| Subdivision Name1: | Chittagong |
| Subdivision Name2: | Brahmanbaria |
| Area Total Km2: | 311.66 |
| Population Total: | 309011 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Website: | Official Map of Nasirnagar |
| Timezone: | BST |
| Utc Offset: | +7 |
Nasirnagar (Bengali: নাসিরনগর) is an upazila of Brahmanbaria District in the Division of Chittagong, Bangladesh.
Nasirnagar is located at 24.207°N 91.2097°W. It has 59,024 households and a total area of 311.66 km2.
According to the 2011 Bangladesh census, Nasirnagar Upazila had 59,024 households and a population of 309,011. 99,239 (32.12%) were under 10 years of age. Nasirnagar had a literacy rate (age 7 and over) of 34.92%, compared to the national average of 51.8%, and a sex ratio of 1052 females per 1000 males. 14,928 (4.83%) lived in urban areas.[1]
According to the 1991 Bangladesh census, Nasirnagar had a population of 234,090. Males constituted 50.45% of the population, and females 49.55%. The population aged 18 or over was 114,601. Nasirnagar had an average literacy rate of 19.3% (7+ years), against the national average of 32.4%.[2]
Nasirnagar Upazila is divided into 13 union parishads: Fandauk, Burishwar, Bhalakut, Chapartala, Chatalpar, Dharmondol, Goalnagar, Gokarna, Goniauk, Haripur, Kunda, Nasirnagar, and Purbabhag. The union parishads are subdivided into 96 mauzas and 128 villages.
Chairman: Roma Akter
Vice Chairman: Abu Ahmad Kamrul Huda
Woman Vice Chairman: Rita Akhtar
Upazila Nirbahi Officer (UNO): Muhammad Imranul Haque
