| District 9 | |
| Native Name: | Quận 9 |
| Native Name Lang: | vi |
| Type: | Urban district |
| Pushpin Map: | Vietnam |
| Pushpin Map Caption: | Location in Vietnam |
| Coordinates: | 10.8303°N 106.8175°W |
| Subdivision Type: | Country |
| Subdivision Name: | Vietnam |
| Subdivision Type1: | Centrally governed city |
| Subdivision Name1: | Ho Chi Minh City |
| Seat Type: | Seat |
| Leader Title: | People's Council |
| Leader Title1: | People's Committee |
| Unit Pref: | Metric |
| Area Total Km2: | 114 |
| Population Total: | 263486 |
| Population Density Km2: | auto |
| Parts Type: | Wards |
| Parts Style: | para |
| P1: | 13 phường |
| Demographics Type1: | Demographics |
| Demographics1 Title1: | Main ethnic groups |
| Demographics1 Info1: | predominantly Kinh |
| Timezone1: | ICT |
| Utc Offset1: | +07 |
| Website: | quan9.hochiminhcity.gov.vn |
District 9 (Vietnamese: Quận 9) is a former urban district (quận) of Ho Chi Minh City, the largest city in Vietnam. As of 2010, the district had a population of 263,486, and an area of 114 km2.[1]
District 9 was merged with District 2 and Thủ Đức district to become Thu Duc City on December 9, 2020, by Standing Committee of the National Assembly's approval.[2]
District 9 borders Đồng Nai province to the east, Bình Dương province to the west, District 2 to the south, and Thủ Đức district to the west.
District 9 consists of 13 wards (phường):
Lycée Français International Marguerite Duras, the French international school, is in Long Bình.[3]