The 2004 Bridgestone Grand Prix of Monterey was the eleventh round of the 2004 Champ Car season, held on September 12, 2004 at Mazda Raceway Laguna Seca in Monterey, California.

Sébastien Bourdais took the pole while Patrick Carpentier won the race, the fifth and final win of his Champ Car career.

It was also the 22nd and final Champ Car event to take place at the Laguna Seca racetrack.