| Hà Đông District | |
| Native Name: | Quận Hà Đông |
| Settlement Type: | Urban district |
| Pushpin Map: | Vietnam |
| Pushpin Label Position: | Location in Vietnam |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Hanoi |
| Seat: | Hà Cầu ward |
| Parts Type: | Wards |
| Parts: | 17 wards |
| Area Total Km2: | 49.64 |
| Area Footnotes: | [1] |
| Population As Of: | 2019 |
| Population Footnotes: | [2] |
| Population Total: | 397,854 |
| Population Density Km2: | auto |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Coordinates: | 20.9667°N 151°W |
| Area Code: | 24 |
| Blank Name: | Climate |
| Blank Info: | Cwa |
| Website: | http://hadong.hanoi.gov.vn |
Hà Đông (literally East of the river) is an urban district (quận) of Hanoi, the capital city of Vietnam.[3] The district currently has 17 wards, covering a total area of 49.64 square kilometers.[1] As of 2019,[2] there were 397,854 people residing in the district, the third highest of all districts in Hanoi, after Hoàng Mai. The district borders Thanh Trì district, Thanh Xuân district, Nam Từ Liêm district, Hoài Đức district, Quốc Oai district, Chương Mỹ district, Thanh Oai district.
Hà Đông has a large number of monuments, landmarks, relics, traditional festivals and craft villages.[4] It is an important transport hub and is also home to various government offices and universities.
Hà Đông was once the capital city of former Hà Tây province. In 2009, it became an urban district of Hanoi due to the incorporation of Hà Tây Province to Hanoi.
Hà Đông district is subdivided to 17 wards, including: