Greece competed at the 1980 Summer Olympics in Moscow, USSR.

Greek athletes have competed in every Summer Olympic Games.

Of the five nations that have been to every Summer Games (the others being Australia, Britain, France and Switzerland), Greece was the only one to compete under its national flag at Moscow, as the other five and several other nations competed under the Olympic flag (New Zealand flew the flag of the New Zealand Olympic and Commonwealth Games Association) in protest of the USSR's involvement in the Afghan Civil War.

[1][2] Men's 100 metres Men's 200 metres Men's Marathon Men's 20 km Walk Men's 50 km Walk Men's Long Jump Women's Long Jump Women's Javelin Throw Heavyweight (100–110 kg) Bantamweight (–56 kg) Flyweight (–52 kg) Middle Heavyweight (82.5–90 kg) Lightweight (60–67.5 kg) Greco-Roman Light-Heavyweight (82–90 kg) Greco-Roman Heavyweight (90–100 kg) Greco-Roman Flyweight (48–52 kg) Freestyle Featherweight (57–62 kg) Greco-Roman Featherweight (57–62 kg) Triplehanded Keelboat Singlehanded Dinghy (Finn Class) Mixed Skeet Mixed 50m Rifle, Prone Coxless Pairs Single Sculls