The Grand Prix of Boston was a proposed IndyCar Series race scheduled to be first held on September 4, 2016. The race was to have taken place on a 2.25 mile route along the South Boston Seaport. The city of Boston, Massachusetts Department of Transportation, Massachusetts Bay Transportation Authority, and the Massachusetts Convention Center Authority had reached an agreement with Indycar to allow the race to move forward. However, it was ultimately decided that the race would be cancelled at its originally planned venue, although it is possible that the race will be moved to another Boston-area location.
Alongside the IndyCar Series, the weekend was also scheduled to have races from the Indy Lights, Stadium Super Trucks, and IMSA Super Trofeo series.
The event was replaced on the 2016 IndyCar Series schedule by a race at Watkins Glen.