| Official Name: | Huai Khwang |
| Native Name: | ห้วยขวาง |
| Settlement Type: | Khwaeng |
| Coordinates: | 13.7782°N 100.5804°W |
| Etymology: | Impeded Creek |
| Subdivision Type: | Country |
| Subdivision Type2: | Province |
| Subdivision Name2: | Bangkok |
| Subdivision Type3: | Khet |
| Subdivision Name3: | Huai Khwang |
| Area Total Km2: | 5.342 |
| Area Footnotes: | [1] |
| Population As Of: | 2022 |
| Population Note: | [2] |
| Population Total: | 27,109 |
| Population Density Km2: | 5,074.69 |
| Timezone: | ICT |
| Utc Offset: | +7 |
| Postal Code Type: | Postal code |
| Postal Code: | 10310 |
| Blank Name: | TIS 1099 |
| Blank Info: | 101701 |
Huai Khwang (th|ห้วยขวาง, pronounced as /th/) is a khwaeng (subdistrict) of Huai Khwang district, downtown Bangkok.
The subdistrict was once a tangle of marshlands in the past. Hence its name "Creeks That Block the Ways."[3]
Nowadays, Huai Khwang is best known for its seedy nightlife and so-called massage parlours.[4]
In addition, Pracha Rat Bamphen road, a branching off Ratchadaphisek road, is also the location of many shops or even nightclubs for Chinese. These Chinese are all new generation, some of them are even students. As a result, Huai Khwang has been dubbed as "New Chinatown".[5]
Huai Khwang is the west part of the district. Adjoining subdistricts are (from the north clockwise): Sam Sen Nok and Bang Kapi in its district, Din Daeng and Ratchadaphisek in Din Daeng district.