The 2017 Formula One season is the 71st season of Formula One motor racing. It features the 68th Formula One World Championship, a motor racing championship for Formula One cars which is recognised by the sport's governing body, the Fédération Internationale de l'Automobile (FIA), as the highest class of competition for open-wheel racing cars. Teams and drivers are competing in twenty Grands Prix—starting in Australia on 26 March and ending in Abu Dhabi on 26 November—for the World Drivers' and World Constructors' championships.
As the reigning Drivers' Champion Nico Rosberg announced his retirement from the sport in December 2016, the 2017 season is the first since 1994 in which the reigning champion did not compete.Mercedes started the season as the defending Constructors' Champion, having secured their third consecutive title at the 2016 Japanese Grand Prix.
After seven races, Sebastian Vettel leads the World Drivers' Championship with 141 points, with Lewis Hamilton second with 129 points, and Valtteri Bottas third with 93 points. In the World Constructors' Championship, Mercedes leads with 222 points, with Ferrari second with 214 points, and Red Bull Racing third with 112 points.
The following teams and drivers have been entered for the grands prix for the 2017 Formula One World Championship: