| Official Name: | Kao Liao |
| Native Name: | เก้าเลี้ยว |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Nakhon Sawan |
| Subdivision Type2: | Tambon |
| Subdivision Type3: | Muban |
| Seat Type: | Seat |
| Seat: | Kao Liao |
| Established Title: | District established |
| Population Total: | 34852 |
| Population As Of: | 2013 |
| Population Density Km2: | auto |
| Area Total Km2: | 256.73 |
| Postal Code Type: | Postal code |
| Postal Code: | 60230 |
| Blank Name Sec1: | Geocode |
| Blank Info Sec1: | 6006 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 15.8503°N 100.0786°W |
Kao Liao (Thai: เก้าเลี้ยว, in Thai pronounced as /kâːw lía̯w/) is a district (amphoe) of Nakhon Sawan province, central Thailand.
The minor district (king amphoe) was created on 1 October 1969, when five tambons were split off from Banphot Phisai district.[1] It was upgraded to a full district on 28 June 1973.[2]
Neighboring districts are (from the north clockwise): Banphot Phisai of Nakhon Sawan province; Pho Thale of Phichit province; Chum Saeng and Mueang Nakhon Sawan of Nakhon Sawan.
The district is divided into five sub-districts (tambons), which are further subdivided into 44 villages (mubans). Kao Liao is a township (thesaban tambon) which covers the whole tambon Kao Liao. There are a further four tambon administrative organizations (TAO) in the district.
| No. | Name | Thai name | Villages | Pop. | |
|---|---|---|---|---|---|
| 1. | Maha Phot | มหาโพธิ | 5 | 5,986 | |
| 2. | Kao Liao | เก้าเลี้ยว | 5 | 4,988 | |
| 3. | Nong Tao | หนองเต่า | 10 | 6,922 | |
| 4. | Khao Din | เขาดิน | 12 | 7,149 | |
| 5. | Hua Dong | หัวดง | 12 | 9,798 |