Portugal competed at the 1980 Summer Olympics in Moscow, USSR.
Despite the United States-led international boycott to these Games, which was reflected in Portugal as the governmental non-funding of the Olympic mission, the Portuguese Olympic Committee's autonomy was respected and thus it was able to collect public financial support to send a delegation of eleven competitors. These participated in six sports, with a debut in boxing, however no medals were won. The nation marched under the Olympic Flag for the Opening and Closing Ceremonies.
Men's 1,500 metres
João José Pontes CamposRound 1 (heat 2) — 3:41.3 (→ 5th)Semi-final (heat 1) — 3:44.4 (→ 7th, did not advance)Men's 3,000 metres Steeplechase
José Manuel SenaRound 1 (heat 3) — did not finishMen's Marathon
Anacleto Pereira PintoFinal — 2:17:04 (→ 16th place)Men's Light Flyweight (–48 kg):
João Manuel Miguel (a.k.a. Paquito)1/16 final — Bye1/8 final — Shamil Sabirov (URS) (→ lost 5:0, did not advance)Women's Team All-Round Competition:
Maria Avelina Alvarez — 69,00 pts (→ 9th – 16th)Men's –60 kg:
João Paulo MendonçaPool B:
Round 1 — Marian Donat (POL) (→ won by waza-ari)Round 2 — Thierry Rey (FRA) (→ lost by ippon)Repêchage — Reino Fagerlund (FIN) (→ lost by koka, did not advance)Men's Half Lightweight (–65 kg):
José António BrancoPool A:
Round 1 — Abdoulaye Thera (MLI) (→ won by waza-ari awasete ippon)Round 2 — Ilian Nedkov (BUL) (→ lost by waza-ari awasete ippon, did not advance)Men's Half Middleweight (–70 kg):
António Roquete AndradePool A:
Round 1 — ByeRound 2 — Berkane Lakhdar Adda (ALG) (→ won by waza-ari)Round 3 — Bernard Tchoullouyan (FRA) (→ lost by ippon, did not advance)Men's 100m Backstroke:
Rui Pinto AbreuHeats (heat 2) — 1:00.62(→ 5th, did not advance)Men's 200m Backstroke:
Rui Pinto AbreuHeats (heat 1) — did not participateMen's 100m Butterfly:
Paulo FrischknechtHeats (heat 4)— 57.94 (→ 5th, did not advance)Men's 100m Freestyle:
Rui Pinto AbreuHeats (heat 1) — 52.85 (→ 5th, did not advance)Men's 200m Freestyle:
Rui Pinto AbreuHeats (heat 1) — 1:55.25 (→ 4th, did not advance)Paulo FrischknechtHeats (heat 1)— 1:55.06 (→ 3rd, did not advance)Men's 400m Freestyle:
Paulo FrischknechtHeats (heat 4)— did not participateMen's Flyweight (–52 kg):
Raul Diniz — 197,0 pts (→ 13th)Salles Grade (chief of mission)Fernando Lima Bello (chief of mission)