The European Parliament election of 2004 took place on 12–13 June 2004.
The Olive Tree was the most voted list in Veneto with 26.7%, followed by Forza Italia (24.1%) and Liga Veneta–Lega Nord (14.1%).
| Party | votes | votes (%) | ||
|---|---|---|---|---|
| The Olive Tree | align=right valign=top | 734,858 | align=right valign=top | 26.7 |
| Forza Italia | 677,524 | 24.6 | ||
| Lega Nord | 389,440 | 14.1 | ||
| National Alliance | 247,063 | 9.0 | ||
| Union of Christian and Centre Democrats | 139,140 | 5.0 | ||
| Communist Refoundation Party | 108,562 | 3.9 | ||
| Federation of the Greens | 77,819 | 2.8 | ||
| Bonino List | 77,065 | 2.8 | ||
| Italy of Values–Civil Society–Occhetto | 58,118 | 2.1 | ||
| Party of Italian Communists | 43,122 | 1.6 | ||
| United Socialists for Europe | 39,007 | 1.4 | ||
| Social Alternative | 34,671 | 1.3 | ||
| Pensioners' Party | 34,656 | 1.3 | ||
| Others | 94,611 | 3.4 | ||
| Total | 2,755,656 | 100.0 |