2005 Istanbul Park GP2 Series round

The 2005 Istanbul Park GP2 Series round was a GP2 Series motor race held on 20 and 21 August 2005 at Istanbul Park in Istanbul, Turkey. It was the ninth round of the 2005 GP2 Series season. The race weekend supported the 2005 Turkish Grand Prix.

Sprint race

 * Notes
 * – Can Artam, Olivier Pla and Fernando Monfardini were given a 25 second time penalty did not have all four tyres on their cars five minutes before the new start time.

Standings after the round

 * Drivers' Championship standings


 * Teams' Championship standings


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