The 2008–09 ISU Grand Prix of Figure Skating was a series of six international invitational competitions in the 2008–09 season.
At each event, skaters earned points based on their placements and the top six scoring skaters or teams at the end of the series qualified for the 2008–09 Grand Prix of Figure Skating Final, held in Goyang, South Korea.
The Grand Prix series began on October 23, 2008 and ended on December 14, 2008.
The corresponding series for Junior-level skaters was the 2008–09 ISU Junior Grand Prix.
Skaters who reached the age of 14 by July 1, 2008 were eligible to compete on the senior Grand Prix circuit.