| Official Name: | Khao Kho |
| Native Name: | เขาค้อ |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Phetchabun |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Khao Kho |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 32932 |
| Population As Of: | 2005 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 67270 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 6711 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 16.6333°N 100.9983°W |
Khao Kho (Thai: เขาค้อ, in Thai pronounced as /kʰǎw kʰɔ́ː/) is a district (amphoe) of Phetchabun province, northern Thailand.
The name of the district comes from Khao Kho, a peak in the Phetchabun Mountains, named either after Livistona speciosa, a kind of palm tree,[1] or after the Ceylon oak.[2] Both species are known as kho (Thai: ค้อ) in Thai and are abundant in the area.
Khao Kho was established as a minor district (king amphoe) on 21 August 1984 by splitting the two tambons Thung Samo and Khaem Son from Lom Sak district.[3] It was upgraded to a full district on 19 July 1991.[4]
Between 1965 and 1984, this mountainous area was a battleground in the fight between the Thai communist party and the Royal Thai Army.
Neighbouring districts are (from the east clockwise) Lom Kao, Lom Sak and Mueang Phetchabun of Phetchabun Province, Noen Maprang, Wang Thong and Nakhon Thai of Phitsanulok province, and Dan Sai of Loei province.
The Phetchabun Mountains are a mountain chain in Khao Kho.
The district is divided into seven sub-districts (tambons), which are further subdivided into 72 villages (mubans). There are no municipal areas (thesabans) in the district. There are five tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Khao Kho | เขาค้อ | 14 | 6,467 | ||
| 2. | Khaem Son | แคมป์สน | 14 | 5,284 | ||
| 3. | Thung Samo | ทุ่งสมอ | 11 | 4,013 | ||
| 4. | Rim Si Muang | ริมสีม่วง | 6 | 1,293 | ||
| 5. | Sado Phong | สะเดาะพง | 5 | 1,432 | ||
| 6. | Nong Mae Na | หนองแม่นา | 10 | 2,594 | ||
| 7. | Khek Noi | เข็กน้อย | 12 | 11,849 |
At present, Khek Noi Sub-district is home to the largest Hmong community in Thailand.[5]