The 2012 Monza GP3 Series round was a GP3 Series motor race held on September 10 and 11, 2012 at Autodromo Nazionale Monza, Italy.

It was the eighth and final round of the 2012 GP3 Series.

[1] The race supported the 2012 Italian Grand Prix.

MW Arden driver Mitch Evans secured the 2012 GP3 championship in the Race 2 when his nearest title rival, Daniel Abt failed to secure enough points to take the title himself.

[2] This was also the final race for the original GP3 car, the Dallara GP3/10, as it was replaced in 2013 by the GP3/13.