Vietnam at the 2012 Summer Olympics

Vietnam competed at the 2012 Summer Olympics in London, from July 27 to August 12, 2012. This was the nation's eighth appearance at the Olympics, having missed the 1984 Summer Olympics in Los Angeles, because of the Soviet boycott.

The Vietnam Olympic Committee (VOC) sent the nation's largest delegation to the Games since 1980. A total of 18 athletes, 6 men and 12 women, competed in 11 sports. For the first time in its Olympic history, Vietnam was represented by more female than male athletes. This was also the youngest delegation in Vietnam's Olympic history, with half under the age of 24, and many of them were expected to reach their peak in time for the 2016 Summer Olympics in Rio de Janeiro. Sixteen athletes competed in their first Olympics, including épée fencer Nguyễn Tiến Nhật, who was the nation's flag bearer at the opening ceremony.

Despite fielding its largest delegation to these games, Vietnam, however, failed to win a single medal. Pistol shooter Hoàng Xuân Vinh and weightlifter Trần Lê Quốc Toàn narrowly missed out on Olympic medals in London, after finishing fourth in their respective sporting events.

In 2020, after the disqualification one athlete in a weightlifting men's 56 kg event, the bronze medal in this event was redistributed to Trần Lê Quốc Toàn.

Athletics
Vietnamese athletes who have so far achieved qualifying standards.


 * Key
 * Note – Ranks given for track events are within the athlete's heat only
 * Q = Qualified for the next round
 * q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
 * NR = National record
 * N/A = Round not applicable for the event
 * Bye = Athlete not required to compete in round


 * Women
 * Track & road events


 * Field events

Badminton
Vietnam has just qualified one athlete

Fencing
Vietnam has qualified one fencer.
 * Men

Gymnastics
Vietnam has qualified three athletes


 * Men


 * Women

Rowing
Vietnam has qualified one boat. Qualification Legend: FA=Final A (medal); FB=Final B (non-medal); FC=Final C (non-medal); FD=Final D (non-medal); FE=Final E (non-medal); FF=Final F (non-medal); SA/B=Semifinals A/B; SC/D=Semifinals C/D; SE/F=Semifinals E/F; QF=Quarterfinals; R=Repechage
 * Women

Shooting
Vietnam has qualified two athletes


 * Men


 * Women

Swimming

 * Women

Taekwondo
Vietnam has qualified two athletes.

Weightlifting
Vietnam has qualified two athletes

Wrestling
Vietnam has qualified one athlete.

Key:
 * VT – Victory by Fall.
 * PP – Decision by Points – the loser with technical points.
 * PO – Decision by Points – the loser without technical points.


 * Women's freestyle