| Official Name: | Khlong Hat |
| Native Name: | คลองหาด |
| Native Name Lang: | th |
| Settlement Type: | District |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type1: | Province |
| Subdivision Name1: | Sa Kaeo |
| Subdivision Type2: | Seat |
| Subdivision Name2: | Khlong Hat |
| Subdivision Type3: | Tambon |
| Subdivision Type4: | Muban |
| Established Title: | District established |
| Population Total: | 35360 |
| Population As Of: | 31 March 2004 |
| Blank Name Sec1: | Postal code |
| Blank Info Sec1: | 27260 |
| Blank Name Sec2: | Geocode |
| Blank Info Sec2: | 2702 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 13.4489°N 102.2997°W |
Khlong Hat (Thai: คลองหาด, in Thai pronounced as /kʰlɔ̄ːŋ hàːt/) is the southeasternmost district (amphoe) of Sa Kaeo province, eastern Thailand.
The area originally was a forest with plenty of Mahat (Thai: Thai: มะหาด) or Lakooch tree (Artocarpus lakoocha) along the canals (khlong). When people moved there, they named the village Ban Khlong Mahat. Later the name was shortened to Ban Khlong Hat. In 1984 Cambodian refugees fleeing from the civil war migrated to the area of Khlong Hat. The Thai government separated the four sub-districts Khlong Hat, Thai Udom, Sap Makrut, and Sai Diao from Watthana Nakhon district and created a minor district (king amphoe) for better administration, effective 15 January 1985.[1] It was upgraded to a full district on 21 May 1990.[2]
Neighboring districts are (from the south clockwise) Soi Dao of Chanthaburi province, Wang Sombun, Wang Nam Yen, Watthana Nakhon, and Aranyaprathet of Sa Kaeo Province. To the east is Battambang province of Cambodia.
A border crossing into Cambodia is in the eastern part of the district near the village of Ban Khao Din. The checkpoint on the Cambodian side of the border is in the town of Sampov Loun.
The district is divided into seven sub-districts (tambons), which are further subdivided into 69 villages (mubans). There are no municipal (thesaban) areas. There are a further seven tambon administrative organizations (TAO).
| No. | Name | Thai name | Villages | Pop. | ||
|---|---|---|---|---|---|---|
| 1. | Khlong Hat | คลองหาด | 13 | 9,206 | ||
| 2. | Thai Udom | ไทยอุดม | 9 | 4,295 | ||
| 3. | Sap Makrut | ซับมะกรูด | 11 | 4,692 | ||
| 4. | Sai Diao | ไทรเดี่ยว | 9 | 3,871 | ||
| 5. | Khlong Kai Thuean | คลองไก่เถื่อน | 11 | 5,797 | ||
| 6. | Benchakhon | เบญจขร | 10 | 4,249 | ||
| 7. | Sai Thong | ไทรทอง | 8 | 3,250 |