The 2013 GP2 Series season was the forty-seventh season of the second-tier of Formula One feeder championship and also ninth season under the GP2 Series moniker, a support series to the 2013Formula One World Championship.
Twenty-six drivers representing thirteen teams was scheduled to take part in the championship. The driver who is declared champion received a Formula One test with tyre supplier Pirelli as their prize, as well as qualifying for an FIASuperlicence.
Scuderia Coloni did not participate in the 2013 season following what the team described as a "disagreement" between themselves and series organisers during the 2012 season. They were replaced by the Dutch team MP Motorsport.
In February 2013, the owners of iSport International announced that the team had been put up for sale to avoid potential bankruptcy. The team was later purchased by Russian Time, a Russian entry based in Germany.
Ocean Racing Technology withdrew from the GP2 Series (and sister series GP3) after encountering financial difficulty. They were replaced by Hilmer Motorsport, a team created by Franz Hilmer, whose company Formtech supplies several Formula One teams.
2012 series runner-up Luiz Razia left Arden International to make his Formula One debut with Marussia. However, Razia lost his seat with the team less than a month later, and did not secure a seat in the GP2 Series.
Davide Valsecchi, who won the 2012 championship with DAMS, left the series, as GP2 champions are not permitted to continue racing in the category. Valsecchi was later promoted to the role of test and reserve driver for Formula One team Lotus F1.
The calendar for the 2013 series was unveiled on 19 December 2012. The season consisted of twenty-two races in support of eleven Formula One Grands Prix throughout the 2013 season.
Points were awarded to the top 10 classified finishers in the Feature race, and to the top 8 classified finishers in the Sprint race. The pole-sitter in the feature race also received four points, and two points were given to the driver who set the fastest lap inside the top ten in both the feature and sprint races. No extra points were awarded to the pole-sitter in the sprint race.
Feature race points
Position
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
10th
Pole
FL
Points
25
18
15
12
10
8
6
4
2
1
4
2
Sprint race points
Points were awarded to the top 8 classified finishers.