The 1989 International Formula 3000 Championship was contested over 10 rounds. Jean Alesi won the title, while also competing in the last half of the Formula One season for Tyrrell.
The season began with Thomas Danielsson winning at Silverstone, after returning from the eye problems that had caused him to miss most of the previous year.
Martin Donnelly then won on the road at Vallelunga, but was disqualified. His Eddie Jordan Racing team had modified the Reynard’s nosecone, but it had not been subjected to the mandatory crash test.
At the Pau Grand Prix, Éric Bernard led the two EJR cars of Jean Alesi and Donnelly after an aborted first start. However, Bernard was caught behind an accident involving Paul Belmondo and stalled his car, allowing Alesi to go through and take the victory. Bernard stormed back though the field, but collided with Mark Blundell while battling for second place. Bernard would win the next race at Jerez. Andrea Chiesa then won a close race on the dusty Enna circuit.
Meanwhile, three F3000 regulars—Alesi, Bernard and Donnelly—all made their Formula One debuts at the French Grand Prix in July. Alesi was particularly impressive for Tyrrell, finishing fourth, and he would continue to drive for them when the F3000 schedule allowed.