2004 Italian motorcycle Grand Prix

The 2004 Italian motorcycle Grand Prix was the fourth round of the 2004 MotoGP Championship. It took place on the weekend of 4–6 June 2004 at the Mugello Circuit.

MotoGP classification
The race, scheduled to be run for 23 laps, was stopped after 17 full laps due to rain. It was later restarted for the remaining 6 laps, with the grid determined by the running order before the suspension. The second part of the race determined the final result.

Championship standings after the race (MotoGP)
Below are the standings for the top five riders and constructors after round four has concluded.


 * Riders' Championship standings


 * Constructors' Championship standings


 * Note: Only the top five positions are included for both sets of standings.