| Official Name: | Khun Han |
| Native Name: | ขุนหาญ |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sisaket |
| Subdivision Type2: | Seat |
| Subdivision Type3: | Subdistrict |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 104015 |
| Population As Of: | 2008 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 33150 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 3308 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 14.6172°N 104.4244°W |
Khun Han (th|ขุนหาญ, pronounced as /th/) is a district (amphoe) in the southern part of Sisaket province, northeastern Thailand.
In 1958 the minor district Khun Han (then still spelled ขุนหาร) was upgraded to a full district.[1]
The district is bounded in the south by the Dangrek Range. Neighboring districts are (from the west clockwise): Phu Sing, Khukhan, Phrai Bueng, Si Rattana, and Kantharalak of Sisaket Province, and Oddar Meancheay of Cambodia.
The district is divided into 12 sub-districts (tambons), which are further subdivided into 145 villages (mubans). Khun Han itself is a sub-district municipality (thesaban tambon) and covers parts of tambons Si and Non Sung. Other sub-district municipalities are Si, Krawan, Non Sung, Kanthrom, and Pho Krasang, each covering the same-named sub-district except those areas belonging to Khun Han municipality. The remaining seven sub-districts each have a tambon administrative organization (TAO).
| No. | Name | Thai | Villages | Pop. | |
|---|---|---|---|---|---|
| 1. | Si | สิ | 14 | 11,461 | |
| 2. | Bak Dong | บักดอง | 22 | 14,666 | |
| 3. | Phran | พราน | 20 | 15,716 | |
| 4. | Pho Wong | โพธิ์วงศ์ | 8 | 6,192 | |
| 5. | Phrai | ไพร | 11 | 6,406 | |
| 6. | Krawan | กระหวัน | 12 | 8,701 | |
| 7. | Khun Han | ขุนหาญ | 9 | 5,813 | |
| 8. | Non Sung | โนนสูง | 9 | 7,791 | |
| 9. | Kanthrom | กันทรอม | 13 | 8,471 | |
| 10. | Phu Fai | ภูฝ้าย | 8 | 5,009 | |
| 11. | Pho Krasang | โพธิ์กระสังข์ | 14 | 8,990 | |
| 12. | Huai Chan | ห้วยจันทร์ | 5 | 4,799 |