| Jonai Bazar | |
| Nickname: | Jonai Town |
| Settlement Type: | Town |
| Pushpin Map: | India Assam#India |
| Pushpin Map Caption: | Location in Assam, India |
| Coordinates: | 27.8329°N 95.2214°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Assam |
| Subdivision Type2: | District |
| Subdivision Name2: | Dhemaji |
| Governing Body: | Jonai Bazar Business Union Board |
| Unit Pref: | Metric |
| Population Total: | 278949 |
| Population As Of: | 2021 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Assamese, Mising |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Registration Plate: | AS22 |
Jonai Bazar is a major town and Commercial hub of Dhemaji district in the Indian state of Assam. It located in the hurt of Jonai Co - District and 100 KM away from the Headquarter Dhemaji District.
India census,[1] Jonai Bazar had a population of 5172. Males constitute 53% of the population and females 47%. Jonai Bazar has an average literacy rate of 65%, higher than the national average of 59.5%: male literacy is 74%, and female literacy is 56%. In Jonai Bazar, 16% of the population is under 6 years of age.