| Settlement Type: | City |
| Official Name: | Chapai Nawabganj |
| Pushpin Map: | Bangladesh Rajshahi division#Bangladesh |
| Pushpin Label Position: | right |
| Pushpin Mapsize: | ৩০০ |
| Pushpin Map Caption: | Location in Bangladesh |
| Coordinates: | 24.591°N 88.269°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Name1: | Rajshahi |
| Subdivision Type2: | District |
| Subdivision Name2: | Chapai Nawabganj |
| Subdivision Type3: | Upazila |
| Subdivision Name3: | Chapai Nawabganj Sadar |
| Government Type: | Mayor-Council |
| Governing Body: | Chapai Nawabganj Municipality |
| Leader Title: | Mayor |
| Leader Name: | Md. Mokhlesur Rahman |
| Established Title: | Municipality |
| Unit Pref: | Metric |
| Area Total Km2: | 32.90 |
| Population Total: | 201000 |
| Population Density Km2: | auto |
| Population As Of: | 2022 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | Bangladesh Time |
| Utc Offset: | +6 |
| Postal Code Type: | Postal code |
| Postal Code: | 6300 |
| Blank Name: | National Dialing Code |
| Blank Info: | +880 |
| Blank1 Name: | Local Dialing Code |
| Blank1 Info: | 781 |
Chapai Nawabganj is a town in north-western Bangladesh. It is the headquarters of Chapai Nawabganj District. It is located on the banks of the Mahananda River.
It is believed the name 'Nawabganj' derives from its status as a favourite hunting ground of the Nawabs of Bengal. There are several theories about how the name 'Chapai' was attached to it.
One claims that in a nearby village, a beautiful girl named Champarani or Champabai lived who was a favourite of the Nawabs. Another claims that the region was Champak, the capital of King Lakhindra, who was loved by Behula in the Manasamangal Kāvya.[1]
According to the 2022 Bangladesh census, Chapai Nawabganj city had a population of 201,000.[2]
According to the 2011 Bangladesh census, Chapai Nawabganj city had 39,422 households and a population of 180,731. 35,936 (19.88%) were under 10 years of age. Chapai Nawabganj had a literacy rate (age 7 and over) of 60.84%, compared to the national average of 51.8%, and a sex ratio of 1101 females per 1000 males.[3]