Vietnam at the 1988 Summer Olympics
Vietnam competed at the 1988 Summer Olympics in Seoul, South Korea.
The delegation included fifteen members in five sport disciplines: athletics, swimming, wrestling, shooting, and cycling.
Competitors
The following is the list of number of competitors in the Games.| Sport | Men | Women | Total |
| Athletics | 2 | 0 | 2 |
| Boxing | 2 | – | 2 |
| Cycling | 1 | 0 | 1 |
| Shooting | 1 | 0 | 1 |
| Swimming | 1 | 1 | 2 |
| Wrestling | 1 | – | 1 |
| Total | 8 | 1 | 9 |
Athletics
Men's Marathon- Nguyễn Văn Thuyết - 3:10.57
Boxing
Men's Light Flyweight- Đặng Hiếu Hiền
- # First Round – Bye
- # Second Round – Defeated Antonio Caballero, RSC-2
- # Third Round – Lost to Michael Carbajal, RSC-1
Cycling
One male cyclist represented Vietnam in 1988.;Men's road race
Swimming
Men's 100m Breaststroke- Quách Hoài Nam
- # Heat - 1:10.90
- Quách Hoài Nam
- # Heat - 2:39.69
- Nguyễn Kiều Oanh
- # Heat - 1:07.96
- Nguyễn Kiều Oanh
- # Heat - 2:33.07