| Official Name: | Rajbari Sadar |
| Native Name: | রাজবাড়ী সদর |
| Settlement Type: | Upazila |
| Coordinates: | 23°N 89°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Type2: | District |
| Seat Type: | Headquarters |
| Subdivision Name1: | Dhaka |
| Subdivision Name2: | Rajbari |
| Seat: | Rajbari |
| Area Total Km2: | 322.34 |
| Population Total: | 331631 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Website: | Upazila Portal |
| Timezone: | BST |
| Utc Offset: | +6 |
| Rajbari | |
Rajbari Sadar (Bengali: রাজবাড়ী সদর) is an upazila of Rajbari District in the Division of Dhaka, Bangladesh. It has its headquarters in the town of Rajbari.
Rajbari Sadar is located at 23.7542°N 89.65°W. It has 75,910 households and total area 322.34 km2.
As of the 2011 Bangladesh census, Rajbari Sadar upazila had 75,910 households and a population of 331,631. 70,885 (21.37%) were under 10 years of age. Rajbari Sadar had an average literacy rate of 57.7%, compared to the national average of 51.8%, and a sex ratio of 1041 females per 1000 males. 58,783 (17.73%) of the population lived in urban areas.[1] [2]
As of the 1991 Bangladesh census, Rajbari Sadar has a population of 263,555. Males constitute 51.46% of the population, and females 48.54%. This Upazila's eighteen up population is 133,985. Rajbari Sadar has an average literacy rate of 32.3% (7+ years), and the national average of 32.4% literate.[3]
Rajbari Sadar Upazila is divided into Rajbari Municipality and 14 union parishads: Alipur, Banibaha, Barat, Basantapur, Chandani, Dadshi, Khankhanapur, Khanganj, Mizanpur, Mulghar, Panchuria, Ramkantapur, Shahid Wahabpur, and Sultanpur. The union parishads are subdivided into 200 mauzas and 209 villages.
Rajbari Municipality is subdivided into 9 wards and 31 mahallas.
See also: Education in Bangladesh. There are five colleges in the upazila: Belgachi Bikalpa College, Bir Muktijoddha Morji Delowara College, Dr. Abul Hossain Degree College, Government Adarsha Mohila College Rajbari, and Rajbari Government College.[4]
According to Banglapedia, Raja Surja Kumar Institute, founded in 1888, Rajbari Government High School (1892), and Yeasin High School (1950),Sher-e-bangla Girls High School(1972) are notable secondary schools.