| Official Name: | Pa Sak |
| Native Name: | ป่าสัก |
| Settlement Type: | Tambon |
| Subdivision Type: | Country |
| Subdivision Type2: | Province |
| Subdivision Name2: | Chiang Rai |
| Subdivision Type3: | Amphoe |
| Subdivision Name3: | Chiang Saen |
| Population As Of: | 2019 |
| Population Total: | 7,877 |
| Timezone: | TST |
| Utc Offset: | +7 |
| Latns: | N |
| Longew: | E |
| Postal Code Type: | Postal code |
| Blank Name: | TIS 1099 |
Pa Sak (th|ป่าสัก) is a tambon (subdistrict) of Chiang Saen District, in Chiang Rai Province, Thailand. In 2019 it had a total population of 7,877 people.[1]
The subdistrict was created effective September 15, 1979 by splitting off 9 administrative villages from Si Don Mun.[2]
The tambon is subdivided into 13 administrative villages (muban).
| No. | Name | Thai | |
|---|---|---|---|
| 1. | Ban Mae Kham Kaset | บ้านแม่คำเกษตร | |
| 2. | Ban Mae Kham Nong Bua | บ้านแม่คำหนองบัว | |
| 3. | Ban Pa Sak Noi | บ้านป่าสักน้อย | |
| 4. | Ban Pa Daet | บ้านป่าแดด | |
| 5. | Ban Nong Bua Sot | บ้านหนองบัวสด | |
| 6. | Ban Pang Mo Puang | บ้านปางหมอปวง | |
| 7. | Ban Doi Champi | บ้านดอยจำปี | |
| 8. | Ban Doi Si Kaeo | บ้านดอยศรีแก้ว | |
| 9. | Ban San Makhet | บ้านสันมะเค็ด | |
| 10. | Ban Doi Kham | บ้านดอยคำ | |
| 11. | Ban Mae Kham Tai | บ้านแม่คำใต้ | |
| 12. | Ban Pa Sak Noi | บ้านป่าสักน้อย | |
| 13. | Ban Pa Sak Noi | บ้านป่าสักน้อย |
The whole area of the subdistrict is covered by the subdistrict administrative organization (SAO) Pa Sak (องค์การบริหารส่วนตำบลป่าสัก).
The historical site of Wat Pa Sak is located in this region.[3]