| Official Name: | Ko Chang, Chiang Rai |
| Native Name: | เกาะช้าง |
| Settlement Type: | Tambon |
| Subdivision Type: | Country |
| Subdivision Name: | Thailand |
| Subdivision Type2: | Province |
| Subdivision Name2: | Chiang Rai |
| Subdivision Type3: | District |
| Subdivision Name3: | Mae Sai |
| Population As Of: | 2005 |
| Population Total: | 9,964 |
| Timezone: | ICT |
| Utc Offset: | +7 |
Ko Chang, Chiang Rai (Thai: เกาะช้าง) is a village and tambon (sub-district) of Mae Sai District, in Chiang Rai Province, Thailand.[1] In 2005, it had a population of 9,964 people. The tambon contains 13 villages.