2003 World Junior Water Polo Championships
| Host City |
Napoli |
| Country |
 ITA |
| Held |
9 – 17 August 2003 |
| Competitors |
37 |
| Countries |
20 |
Events
| Event |
Gender |
Held |
Status |
Competitors |
Countries |
| Water Polo |
Men |
9 – 17 August 2003 |
Medal |
37 |
20 |
Medal table
| Pos |
Country |
🥇 Gold |
🥈 Silver |
🥉 Bronze |
Total |
| 1 |
Serbia and Montenegro |
 SCG |
1 |
0 |
0 |
1 |
| 2 |
Hungary |
 HUN |
0 |
1 |
0 |
1 |
| 3 |
Italy |
ITA |
0 |
0 |
1 |
1 |
Medal winners