| Noc: | VIE |
| Nocname: | Vietnam Olympic Committee |
| Year: | 2009 |
| Games: | Southeast Asian Games |
| Location: | Vientiane |
| Flagbearer: | Nguyen Trong Cuong (Taekwondo) |
| Gold: | 83 |
| Silver: | 75 |
| Bronze: | 57 |
| Rank: | 2 |
| Appearances: | |
| Website: |
Vietnam participated in the 2009 Southeast Asian Games in the city of Vientiane, Laos from 9 December 2009 to 18 December 2009. They won 83 gold, 75 silver, and 57 bronze medals. They came second overall in Nation Ranking.[1]