| Official Name: | Wang Noi |
| Native Name: | วังน้อย |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ayutthaya |
| Subdivision Type2: | Tambon |
| Subdivision Name2: | 10 |
| Subdivision Type3: | Muban |
| Seat Type: | Seat |
| Seat: | Lam Sai |
| Established Title: | District established |
| Population Total: | 64130 |
| Population As Of: | 2007 |
| Population Density Km2: | auto |
| Area Total Km2: | 219.2 |
| Postal Code Type: | Postal code |
| Postal Code: | 13170 |
| Blank Name Sec1: | Geocode |
| Blank Info Sec1: | 1411 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 14.2267°N 100.7153°W |
Wang Noi (th|วังน้อย, pronounced as /th/) is a district (amphoe) in Ayutthaya province, Thailand, 50 km north of Bangkok. The population of Wang Noi were mostly farmers but now this area is industrial.
The district is in the southeastern part of Ayutthaya province. Neighboring districts are (from the east clockwise) Nong Khae, Saraburi province, Nong Suea and Khlong Luang of Pathum Thani province, and Bang Pa-in and Uthai of Ayutthaya province.
The district was split off from Uthai District in 1907. At first named Uthai Noi (อุทัยน้อย), it was renamed Wang Noi in 1917.[1]
As the district lies along a long stretch of Phahonyothin Road (National Highway 1) as it leaves Greater Bangkok, Wang Noi has become a logistics hub, hosting warehouses for a broad range of industries. The district is the site of one of Thailand Post's (THP) fully automated sorting centers., THP is negotiating to purchase 100 rai of land to house the facility.[2]
The district is divided into 10 sub-districts (tambon), which are further subdivided into 68 villages (muban). Lam Ta Sao is a sub-district municipality (thesaban tambon), which covers the whole sub-district Lam Ta Sao and parts of Bo Ta Lo, Lam Sai, and Chamaep. There are a further nine tambon administrative organizations (TAO) for the non-municipal areas.
| No. | Name | Thai | Pop.[3] | |
|---|---|---|---|---|
| 1. | Lam Ta Sao | ลำตาเสา | 14,365 | |
| 2. | Bo Ta Lo | บ่อตาโล่ | 6,314 | |
| 3. | Wang Noi | วังน้อย | 4,718 | |
| 4. | Lam Sai | ลำไทร | 9,196 | |
| 5. | Sanap Thuep | สนับทึบ | 4,085 | |
| 6. | Phayom | พยอม | 11,434 | |
| 7. | Han Taphao | หันตะเภา | 3,123 | |
| 8. | Wang Chula | วังจุฬา | 3,478 | |
| 9. | Khao Ngam | ข้าวงาม | 2,300 | |
| 10. | Chamaep | ชะแมบ | 5,117 |