| Sadong-guyŏk | |
| Native Name Lang: | ko |
| Settlement Type: | Guyŏk of Pyongyang |
| Translit Lang1: | Korean |
| Translit Lang1 Type1: | Hanja |
| Translit Lang1 Info1: | 寺洞區域 |
| Translit Lang1 Info2: | Sadong-guyŏk |
| Translit Lang1 Info3: | Sadongguyeok |
| Coordinates: | 38.9833°N 179°W |
| Subdivision Type: | Country |
| Subdivision Name: | North Korea |
| Subdivision Type1: | Direct-administered city |
| Subdivision Name1: | P'yŏngyang-Chikhalsi |
| Area Total Km2: | 124.8 |
| Population As Of: | 2008[1] |
| Population Total: | 140869 |
| Population Density Km2: | auto |
| Parts Type: | Administrative divisions |
| Hangul: | 사동구역 |
| Rr: | Sadongguyeok |
| Mr: | Sadong-guyŏk |
Sadong-guyŏk, or Sadong District, is one of the 18 guyŏk, and one of the six, that constitute East Pyongyang, North Korea. It is on the eastern bank of the Taedong River, and the mouth of the Nam River. It is north of Ryŏkp'o-guyŏk (Ryokpho District), east of Taedonggang-guyŏk (Taedonggang District) and north east of Tongdaewŏn-guyŏk. It was established in September 1959.
Sadong-guyŏk is divided into 13 tong (neighbourhoods) and 6 ri (villages):