The Dominican Republic competed at the 1968 Summer Olympics in Mexico City, Mexico.

18 competitors, all men, took part in 16 events in 5 sports.

[1] Men's 100 metres Men's 200 metres Men's 400 metres Men's 800 metres Men's 1500 metres Men's 110 metres hurdles Men's 4x100 metres relay Men's 4x400 metres relay Flyweight (48 kg) Lightweight (60 kg) Light welterweight (63.5 kg) Three shooters, all men, represented the Dominican Republic in 1968.

Lightweight Light heavyweight Men's freestyle flyweight (52 kg) Men's freestyle featherweight (63 kg)