| Official Name: | Wiset Chai Chan |
| Native Name: | วิเศษชัยชาญ |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ang Thong |
| Subdivision Type2: | Tambon |
| Subdivision Type3: | Muban |
| Seat Type: | Seat |
| Established Title: | District established |
| Population Total: | 65298 |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Area Total Km2: | 224.7 |
| Postal Code Type: | Postal code |
| Postal Code: | 14110 |
| Blank Name Sec1: | Geocode |
| Blank Info Sec1: | 1506 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 14.5944°N 100.3386°W |
Wiset Chai Chan (in Thai pronounced as /wí.sèːt t͡ɕʰāj t͡ɕʰāːn/) is a district (amphoe) in the southwestern part of Ang Thong province, central Thailand.
When King Naresuan the Great defeated the Burmese troops at Don Chedi, he led his troops past Phai Cham Sin. He saw the strategic potential of the area with the Noi River as a natural obstacle for the Burmese troops. Thus he established Mueang Wiset Chai Chan there.
In the Rattanakosin era, the Noi River had become shallow and was no longer navigable for water transportation. The government thus moved the central tambon of the mueang to Bang Kaeo, on the Chao Phraya River bank and called the new area Ang Thong. At the same time, they downgraded the district to Phai Cham Sin District. King Chulalongkorn (Rama V) ordered the district to assume its historical name, Wiset Chai Chan. In 1979 the office district was moved to the Pho Phraya-Tha Rua Road in Tambon San Chao Rong Thong.
Neighboring districts are (from the north clockwise) Samko, Pho Thong, Mueang Ang Thong, and Pa Mok of Ang Thong Province; Phak Hai of Ayutthaya province and Mueang Suphanburi; and Si Prachan of Suphanburi province.
The district is divided into 15 sub-districts (tambons). There are two townships (thesaban tambons) within the district. San Chao Rong Thong covers parts of tambons San Chao Rong Thong and Phai Cham Sin, and Bang Chak covers parts of the tambons Bang Chak, Khlong Khanak, and Si Roi.
| No. | Name | Thai | |
|---|---|---|---|
| 1. | Phai Cham Sin | ไผ่จำศิล | |
| 2. | San Chao Rong Thong | ศาลเจ้าโรงทอง | |
| 3. | Phai Dam Phatthana | ไผ่ดำพัฒนา | |
| 4. | Sao Rong Hai | สาวร้องไห้ | |
| 5. | Tha Chang | ท่าช้าง | |
| 6. | Yi Lon | ยี่ล้น | |
| 7. | Bang Chak | บางจัก | |
| 8. | Huai Khan Laen | ห้วยคันแหลน | |
| 9. | Khlong Khanak | คลองขนาก | |
| 10. | Phai Wong | ไผ่วง | |
| 11. | Si Roi | สี่ร้อย | |
| 12. | Muang Tia | ม่วงเตี้ย | |
| 13. | Hua Taphan | หัวตะพาน | |
| 14. | Lak Kaeo | หลักแก้ว | |
| 15. | Talat Mai | ตลาดใหม่ |