| Host City | Sofia |
|---|---|
| Country | |
| Held | 17 – 28 August 1977 |
| Events | 112 |
| Competitors | 447 |
| Countries | 26 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| Individual All-Around, Men | Men | — | Medal | 3 | 2 |
| Floor Exercise, Men | Men | — | Medal | 5 | 4 |
| Vault, Men | Men | — | Medal | 3 | 2 |
| Parallel Bars, Men | Men | — | Medal | 3 | 3 |
| Horizontal Bar, Men | Men | — | Medal | 3 | 2 |
| Rings, Men | Men | — | Medal | 4 | 2 |
| Pommelled Horse, Men | Men | — | Medal | 3 | 3 |
| Team All-Around, Men | Men | — | Medal | 9 | 3 |
| Individual All-Around, Women | Women | — | Medal | 3 | 3 |
| Floor Exercise, Women | Women | — | Medal | 3 | 2 |
| Vault, Women | Women | — | Medal | 3 | 3 |
| Uneven Bars, Women | Women | — | Medal | 3 | 2 |
| Balance Beam, Women | Women | — | Medal | 3 | 2 |
| Team All-Around, Women | Women | — | Medal | 8 | 3 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| 100 m, Men | Men | — | Medal | 3 | 2 |
| 200 m, Men | Men | — | Medal | 3 | 2 |
| 400 m, Men | Men | — | Medal | 3 | 3 |
| 800 m, Men | Men | — | Medal | 3 | 3 |
| 1,500 m, Men | Men | — | Medal | 3 | 3 |
| 5,000 m, Men | Men | — | Medal | 3 | 2 |
| 10,000 m, Men | Men | — | Medal | 3 | 3 |
| 110 m Hurdles, Men | Men | — | Medal | 3 | 3 |
| 400 m Hurdles, Men | Men | — | Medal | 3 | 3 |
| 3,000 m Steeplechase, Men | Men | — | Medal | 3 | 3 |
| 4 x 100 m Relay, Men | Men | — | Medal | 12 | 3 |
| 4 x 400 m Relay, Men | Men | — | Medal | 12 | 3 |
| High Jump, Men | Men | — | Medal | 3 | 3 |
| Pole Vault, Men | Men | — | Medal | 3 | 2 |
| Long Jump, Men | Men | — | Medal | 3 | 3 |
| Triple Jump, Men | Men | — | Medal | 3 | 2 |
| Shot Put, Men | Men | — | Medal | 3 | 2 |
| Discus Throw, Men | Men | — | Medal | 3 | 2 |
| Hammer Throw, Men | Men | — | Medal | 3 | 2 |
| Javelin Throw, Men | Men | — | Medal | 3 | 3 |
| Decathlon, Men | Men | — | Medal | 3 | 3 |
| 100 m, Women | Women | — | Medal | 3 | 3 |
| 200 m, Women | Women | — | Medal | 3 | 3 |
| 400 m, Women | Women | — | Medal | 3 | 3 |
| 800 m, Women | Women | — | Medal | 3 | 2 |
| 1,500 m, Women | Women | — | Medal | 3 | 2 |
| 100 m Hurdles, Women | Women | — | Medal | 3 | 2 |
| 4 x 100 m Relay, Women | Women | — | Medal | 13 | 3 |
| High Jump, Women | Women | — | Medal | 3 | 3 |
| Long Jump, Women | Women | — | Medal | 3 | 3 |
| Shot Put, Women | Women | — | Medal | 3 | 3 |
| Discus Throw, Women | Women | — | Medal | 3 | 2 |
| Javelin Throw, Women | Women | — | Medal | 3 | 3 |
| Pentathlon, Women | Women | — | Medal | 3 | 3 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| Basketball, Men | Men | — | Medal | 34 | 3 |
| Basketball, Women | Women | — | Medal | 24 | 3 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| 3 m Springboard, Men | Men | — | Medal | 3 | 2 |
| 10 m Platform, Men | Men | — | Medal | 3 | 2 |
| 3 m Springboard, Women | Women | — | Medal | 3 | 2 |
| 10 m Platform, Women | Women | — | Medal | 3 | 2 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| Épée individual, Men | Men | — | Medal | 3 | 3 |
| Épée team, Men | Men | — | Medal | 12 | 3 |
| Foil individual, Men | Men | — | Medal | 3 | 2 |
| Foil team, Men | Men | — | Medal | 12 | 3 |
| Sabre individual, Men | Men | — | Medal | 3 | 2 |
| Sabre team, Men | Men | — | Medal | 14 | 3 |
| Foil individual, Women | Women | — | Medal | 3 | 3 |
| Foil team, Women | Women | — | Medal | 12 | 3 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| 100 m Freestyle, Men | Men | — | Medal | 3 | 2 |
| 400 m Freestyle, Men | Men | — | Medal | 3 | 2 |
| 1,500 m Freestyle, Men | Men | — | Medal | 3 | 2 |
| 4 x 100 m Freestyle Relay, Men | Men | — | Medal | 12 | 3 |
| 4 x 200 m Freestyle Relay, Men | Men | — | Medal | 8 | 3 |
| 100 m Backstroke, Men | Men | — | Medal | 3 | 3 |
| 200 m Backstroke, Men | Men | — | Medal | 3 | 2 |
| 100 m Breaststroke, Men | Men | — | Medal | 3 | 3 |
| 200 m Breaststroke, Men | Men | — | Medal | 3 | 2 |
| 100 m Butterfly, Men | Men | — | Medal | 3 | 2 |
| 200 m Butterfly, Men | Men | — | Medal | 3 | 3 |
| 400 m Individual Medley, Men | Men | — | Medal | 3 | 2 |
| 4 x 100 m Medley Relay, Men | Men | — | Medal | 12 | 3 |
| 100 m Freestyle, Women | Women | — | Medal | 3 | 2 |
| 400 m Freestyle, Women | Women | — | Medal | 3 | 2 |
| 4 x 100 m Freestyle Relay, Women | Women | — | Medal | 12 | 3 |
| 100 m Backstroke, Women | Women | — | Medal | 3 | 2 |
| 100 m Breaststroke, Women | Women | — | Medal | 3 | 3 |
| 200 m Breaststroke, Women | Women | — | Medal | 3 | 2 |
| 100 m Butterfly, Women | Women | — | Medal | 3 | 3 |
| 200 m Individual Medley, Women | Women | — | Medal | 3 | 2 |
| 4 x 100 m Medley Relay, Women | Women | — | Medal | 12 | 3 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| Singles, Men | Men | — | Medal | 3 | 3 |
| Doubles, Men | Men | — | Medal | 6 | 3 |
| Singles, Women | Women | — | Medal | 3 | 2 |
| Doubles, Women | Women | — | Medal | 6 | 3 |
| Doubles, Mixed | Mixed | — | Medal | 6 | 3 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| Volleyball, Men | Men | — | Medal | 10 | 3 |
| Volleyball, Women | Women | — | Medal | 12 | 3 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| Water Polo, Men | Men | — | Medal | 22 | 3 |
| Event | Gender | Held | Status | Competitors | Countries |
|---|---|---|---|---|---|
| Greco-Roman -48 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman -52 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman -57 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman -62 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman -68 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman -74 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman -82 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman -90 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman -100 kg, Men | Men | — | Medal | 3 | 3 |
| Greco-Roman +100 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -48 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -52 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -57 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -62 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -68 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -74 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -82 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -90 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle -100 kg, Men | Men | — | Medal | 3 | 3 |
| Freestyle +100 kg, Men | Men | — | Medal | 3 | 3 |
| Pos | Country | 🥇 Gold | 🥈 Silver | 🥉 Bronze | Total | |
|---|---|---|---|---|---|---|
| 1 | Soviet Union | 32 | 35 | 30 | 97 | |
| 2 | United States | 19 | 11 | 13 | 43 | |
| 3 | Bulgaria | 16 | 10 | 12 | 38 | |
| 4 | Romania | 12 | 9 | 13 | 34 | |
| 5 | Japan | 5 | 5 | 1 | 11 | |
| 6 | Czechoslovakia | 5 | 4 | 1 | 10 | |
| 7 | Canada | 4 | 6 | 5 | 15 | |
| 8 | Cuba | 4 | 3 | 4 | 11 | |
| 9 | Poland | 3 | 6 | 4 | 13 | |
| 10 | Hungary | 3 | 4 | 4 | 11 | |
| 11 | Germany | 3 | 3 | 6 | 12 | |
| 12 | France | 2 | 2 | 2 | 6 | |
| 13 | Italy | 1 | 3 | 3 | 7 | |
| 14 | Yugoslavia | 1 | 3 | 1 | 5 | |
| 15 | Mongolia | 1 | 0 | 2 | 3 | |
| 16 | Austria | 1 | 0 | 0 | 1 | |
| = | Belgium | 1 | 0 | 0 | 1 | |
| = | Brazil | 1 | 0 | 0 | 1 | |
| 19 | Great Britain | 0 | 4 | 1 | 5 | |
| 20 | East Germany | 0 | 3 | 3 | 6 | |
| 21 | China | 0 | 1 | 2 | 3 | |
| 22 | North Korea | 0 | 0 | 2 | 2 | |
| 23 | Algeria | 0 | 0 | 1 | 1 | |
| = | Iran | 0 | 0 | 1 | 1 | |
| = | Switzerland | 0 | 0 | 1 | 1 | |
| = | Turkey | 0 | 0 | 1 | 1 | |