| Official Name: | Mithamoin |
| Native Name: | মিঠামইন |
| Settlement Type: | Upazila |
| Coordinates: | 24°N 91°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Bangladesh |
| Subdivision Type1: | Division |
| Subdivision Type2: | District |
| Seat Type: | Headquarters |
| Subdivision Name1: | Dhaka |
| Subdivision Name2: | Kishoreganj |
| Leader Title: | Upazila Chairman |
| Leader Name: | Asiya Alam |
| Leader Title1: | MP (Kishoreganj-4) |
| Leader Name1: | Rejwan Ahammad Taufiq |
| Established Date: | 7 November 1983 |
| Established Title: | Upazila |
| Area Total Km2: | 222.91 |
| Population Total: | 125157 |
| Population As Of: | 2022 |
| Population Footnotes: | [1] |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
| Postal Code: | 2370[2] |
| Area Code: | 09435[3] |
| Timezone: | BST |
| Utc Offset: | +6 |
| Seat: | Mithamain |
Mithamoin (bn|মিঠামইন|Mithamoin) is an upazila (subdistrict) of Kishoreganj District in northern Bangladesh, located in the Dhaka Division.[4] It is best known as the home upazila of Abdul Hamid, the former President of Bangladesh.
Mithamoin is located at 24.425°N 91.0458°W. Mithamoin has 23,850 households and a total land area of 222.91 km2.
The area has been inhabited for centuries. The name of Mithamain can be found in James Rennell's 1781 map of Bengal. The upazila was named after the village of Mithamain. Its etymology is rumored to be that at one time there was a large reed forest in the vicinity of the area. The reed was sweet, and the name of the village came to Mithabon (মিঠাবন sweet forest) which was corrupted to Mithamon and later Mithamain/Mithamoin in the local dialect.
During the Bangladesh Liberation War of 1971, 28 Bengalis were murdered in the village of Dhubajura and 3 in Telikhai on 1 November. Boira was a site of mass killing. On 7 November 1983, Mithamain Thana was upgraded to an upazila.[4]
According to the 2011 Census of Bangladesh, Mithamain Upazila had 23,850 households and a population of 122,026. 39,236 (32.15%) were under 10 years of age. Mithamain had a literacy rate (age 7 and over) of 30.92%, compared to the national average of 51.8%, and a sex ratio of 974 females per 1000 males. 12,600 (10.33%) lived in urban areas.[5] [6]
As of the 1991 Bangladesh census, Mithamoin's population is 108,204. The population's male to female ratio is 51.79% to 48.21%. 49,034 of Upazila's population is aged 18 or above. Mithamoin has an average literacy rate of 15.6% (7+ years). The literary rate nationally is 32.4%.[7]
Mithamoin Upazila is divided into Mithamoin Municipality and seven union parishads: Bairati, Dhaki, Ghagra, Gopedighi, Khatkhal, Keorjori, and Mithamain. The union parishads are subdivided into 59 mauzas and 135 villages.
| Muhammad Zillur Rahman | 25/5/1985-23/11/1991 | Advocate |
| Qamrul Ahsan Shahjahan | 1/1/2009-6/3/2014 | Advocate |
| Asiya Alam | Present |
Land acquisition for a new cantonment was underway by 2016.[8] The Bangladesh Army planned to form a riverine engineer battalion there.[9] Bir Muktijoddha Abdul Hamid Cantonment, built on 275 acres of land along the Ghorauta River, was inaugurated in February 2023.[10]