| Native Name: | Burmese: သံတောင်မြို့ |
| Official Name: | Thandaung |
| Pushpin Label Position: | bottom |
| Pushpin Map: | Burma |
| Pushpin Map Caption: | Location in Burma |
| Subdivision Type: | Country |
| Subdivision Type1: | Division |
| Subdivision Type2: | District |
| Subdivision Name2: | Hpa-an District |
| Subdivision Type3: | Township |
| Subdivision Name3: | Thandaung Township |
| Unit Pref: | Imperial |
| Population As Of: | 2005 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2: | Buddhism and Christianity |
| Population Blank2 Title: | Religions |
| Population Density Km2: | auto |
| Coordinates: | 19.0217°N 96.5827°W |
| Leader Title: | Mayor |
| Timezone: | MST |
| Utc Offset: | +6.30 |
Thandaung (Phlone Burmese: ဍုံသင်တင်; my|သံတောင်မြို့) is a small resort town in the Kayin State of south Myanmar. The majority of its population is Karen. It was developed as a hill station by the British.