Khao Yoi district
Khao Yoi 
    เขาย้อย  | |
|---|---|
District location in Phetchaburi province  | |
| Coordinates: 13°14′25″N 99°49′27″E / 13.24028°N 99.82417°E | |
| Country | Thailand | 
| Province | Phetchaburi | 
| Seat | Khao Yoi | 
| Area | |
 • Total  | 305.648 km2 (118.011 sq mi) | 
| Population  (2008)  | |
 • Total  | 37,697 | 
| • Density | 121.8/km2 (315/sq mi) | 
| Time zone | UTC+7 (ICT) | 
| Postal code | 76140 | 
| Geocode | 7602 | 
Khao Yoi (Thai: เขาย้อย, pronounced [kʰǎw jɔ́ːj]) is a district (amphoe) in the northern part of Phetchaburi province, western Thailand.