| Tourney Name: | Torneo Mondiale di Calcio Coppa Carnevale |
| Year: | 1978 |
| Other Titles: | 30° Torneo di Viareggio |
| City: | Viareggio |
| Country: | Italy |
| Num Teams: | 16 |
| Champion Other: |  Fiorentina |
| Second Other: | Roma |
| Third Other: | Inter Milan |
| Fourth Other: | OFK Beograd |
| Matches: | 30 |
| Goals: | 71 |
| Prevseason: | 1977 |
| Nextseason: | 1979 |
The 1978 winners of the Torneo di Viareggio (in English, the Viareggio Tournament, officially the Viareggio Cup World Football Tournament Coppa Carnevale), the annual youth football tournament held in Viareggio, Tuscany, are listed below.
The 16 teams are seeded in 4 groups. Each team from a group meets the others in a single tie. The winner of each group progress to the final knockout stage.
Beijing Youth| width=200 | Team | width=20 | Pts | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=20 | GF | width=20 | GA | width=20 | GD |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fiorentina | 5 | 3 | 2 | 1 | 0 | 7 | 1 | +6 | |||||||||
| OFK Beograd | 4 | 3 | 1 | 2 | 0 | 4 | 3 | +1 | |||||||||
| Sampdoria | 2 | 3 | 0 | 2 | 1 | 0 | 3 | -3 | |||||||||
| Beijing Youth | 1 | 3 | 0 | 1 | 2 | 2 | 6 | -4 |
| width=200 | Team | width=20 | Pts | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=20 | GF | width=20 | GA | width=20 | GD |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Levski-Spartak | 6 | 3 | 3 | 0 | 0 | 9 | 2 | +7 | |||||||||
| Dukla Praha | 4 | 3 | 2 | 0 | 1 | 5 | 3 | +2 | |||||||||
| Milan | 2 | 3 | 1 | 0 | 2 | 2 | 5 | -3 | |||||||||
| Napoli | 0 | 3 | 0 | 0 | 3 | 1 | 7 | -6 |
| width=200 | Team | width=20 | Pts | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=20 | GF | width=20 | GA | width=20 | GD |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inter Milan | 5 | 3 | 2 | 1 | 0 | 7 | 1 | +6 | |||||||||
 Benfica | 4 | 3 | 1 | 2 | 0 | 3 | 2 | +1 | |||||||||
| Perugia | 3 | 3 | 1 | 1 | 1 | 3 | 2 | +1 | |||||||||
 Olympiacos | 0 | 3 | 0 | 0 | 3 | 2 | 10 | -8 |
| width=200 | Team | width=20 | Pts | width=20 | Pld | width=20 | W | width=20 | D | width=20 | L | width=20 | GF | width=20 | GA | width=20 | GD |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Roma | 5 | 3 | 2 | 1 | 0 | 4 | 1 | +3 | |||||||||
 Real Murcia | 4 | 3 | 1 | 2 | 0 | 5 | 2 | +3 | |||||||||
| Juventus | 3 | 3 | 1 | 1 | 1 | 3 | 3 | 0 | |||||||||
 Bastia | 0 | 3 | 0 | 0 | 3 | 0 | 6 | -6 |