Portugal competed at the 1980 Summer Olympics in Moscow, USSR. Portugal sent a delegation of eleven competitors. These participated in six sports, with a debut in boxing, however no medals were won.

Results by event

Athletics

Men's 1,500 metres Men's 3,000 metres Steeplechase Men's Marathon

Boxing

Men's Light Flyweight (–48 kg):

Gymnastics

Women's Team All-Round Competition:

Judo

Men's –60 kg: Men's Half Lightweight (–65 kg): Men's Half Middleweight (–70 kg):

Swimming

Men's 100m Backstroke: Men's 200m Backstroke: Men's 100m Butterfly: Men's 100m Freestyle: Men's 200m Freestyle: Men's 400m Freestyle:

Weightlifting

Men's Flyweight (–52 kg):

Officials