Mehsi, Bihar
| Mehsi Maheshi or Mesi | |
|---|---|
| City | |
| V.I.P Rd, Chowk Bazar in Mehsi | |
| Coordinates: 26°21′N 85°07′E / 26.35°N 85.11°E | |
| Country | India | 
| State | Bihar | 
| Division | Tirhut | 
| Established | 1216 AD | 
| Founded by | Mirja Halim Shah(R.A) | 
| Nagar Palika | Kaswa Mehsi | 
| Government | |
| • Type | Nagar Panchayat | 
| • Body | Ward - (15) | 
| • Rank | 42.68km | 
| Elevation | 64 m (210 ft) | 
| Population  (2025 estimate) | |
|  • Total | 80,000 | 
| Demonym | 'mehsiwashi | 
| Languages | |
| • Official | Bhojpuri, Urdu, Hindi, English | 
| Time zone | UTC+5:30 (IST) | 
| PIN | 845426, 845406, 843111 | 
| Telephone code | 06257 | 
| ISO 3166 code | IN-BR | 
| Vehicle registration | BR05 | 
| Neighbors | Kaswa Mehsi (Office), Rajepur, Bakhari, Ojhilpur, Hardo Patti | 
| Avg. summer temperature | 42 °C (108 °F) | 
| Lok Sabha constituency | 3. Purvi Champaran | 
| Vidhan Sabha constituency | Pipra, Mehsi | 
| Website | eastchamparan | 
Mehsi is a CD Block and Mehsi Nagar Panchayat City and a municipality in the Purvi Champaran district in the Indian state of Bihar. It is a part of the Tirhut Division. The town is the entry point of the Purvi Champaran district. There are many smaller factories manufacturing buttons for the clothing Industry, although most of the population depends upon commercial business and Business agriculture.
Around 1216–1225 during the time of the Delhi Sultanate, a famous Sunni donor Mirza Haleem named Mehsi after his follower Mahesh Ray. Which is the grave of Data Mirza Haleem in the town Mehsi Bihar state of India.